| 单词 | Cretaceous period |
| 例句 | Ma glances at the lush tropical landscape and concludes, “This must be the Mesozoic era. Jurassic or Cretaceous period, I’d say, judging from the flora and fauna. What do you think, Jax?” Dragons in a Bag 2018-10-23T00:00:00Z “They lived from the late Triassic to the Cretaceous period, though technically they’re not dinosaurs,” Kavita says in a know-it-all sort of way. Dragons in a Bag 2018-10-23T00:00:00Z T. rex was a beast of the Cretaceous period, of about 65 million to 145 million years ago. Sequim collector turns dinosaur bones into art 2010-03-23T17:48:00Z Bataar fossils from the late Cretaceous period about 70 million years ago were first discovered in the Gobi Desert in 1946. Dinosaur Skeleton to Be Returned to Mongolians 2013-05-06T03:00:01Z Now think back to 2012, which was only three years ago—practically the Cretaceous period in viral Internet time. The 'Gangnam Style' Guy Is Back With an Ode to Dad Bods 2015-11-30T05:00:00Z The 40-acre grounds north of Moab, another popular gateway town, will focus on the tracks of Utah dinosaurs from the early Jurassic through the early Cretaceous periods. National Parks Gear Up for Summer Rush 2015-05-28T04:00:00Z The site, discovered in Xinjiang province in 2005, was preserved probably after the Cretaceous period creatures perished together in a large storm, Zhou said. Stunning fossil eggs provide insight on ancient flying reptiles 2014-06-05T04:00:00Z The show is set in the Cretaceous period, instead of the Jurassic period. Fox?s ?Terra Nova? Aims for Broad Appeal 2011-09-17T23:45:05Z Researchers said the dinosaurs, buried by rocks from the huge Tyndall Glacier, lived between the Triassic and Cretaceous periods, which extended from 250 million to 66 million years ago. Chile's Torres del Paine park yields dinosaur treasure trove 2014-06-03T04:00:00Z No one doubts that there was a major impact at the end of the Cretaceous period. Ted Nield: We won't go the way of the dinosaurs 2011-01-02T00:05:00Z But understanding how this came to be first requires a panoptic survey of everything from the world of the Late Cretaceous period to the 1990s rise of right-wing politics in Mongolia. The Bizarre Tale of the ‘Dinosaur Artist’ Who Trafficked in Stolen Fossils 2018-10-01T04:00:00Z In the re-edited premiere, before the Shannon family leaves for the Cretaceous period, the father hides Zoe, the youngest of his three children, from the authorities, who enforce a two-child policy. Fox?s ?Terra Nova? Aims for Broad Appeal 2011-09-17T23:45:05Z This show offers models, fossils, casts and some virtual reality experiences, so visitors can pretend they live in the Cretaceous period. Mark These Dates: A Wave of Art Is Coming Your Way 2019-03-12T04:00:00Z A large-scale fossil exhibition focused on the late Cretaceous period in North America allows visitors to view the fossils of Tyrannosaurus rex and other dinosaurs from a working preparation lab. At museums this fall: Art and science, civilization and extinction Such rocks contain traces that geoscientists use to mark the change from the Cretaceous period to the Palaeogene period in Earth’s history. Did Dusty Skies Doom the Dinosaurs? 2023-11-02T04:00:00Z They found that the gland first evolved about 148 million years ago, at the boundary of the Jurassic and Cretaceous periods. The Secret to Beetles’ Unfathomable Diversity 2023-09-27T04:00:00Z During the Cretaceous period 125 million years ago, a ravenous Repenomamus, an ancient mammal the size of an opossum, pounced on an unsuspecting Psittacosaurus—an herbivorous dinosaur more than three times its size. Mammals Preyed on Much Larger Dinosaurs, a Stunning New Fossil Reveals 2023-07-18T04:00:00Z The fossil, described Tuesday in the journal Scientific Reports, shows two creatures from around 125 million years ago, during the Cretaceous period. Mammals may have hunted down dinosaurs for dinner, rare fossil suggests 2023-07-18T04:00:00Z In this case, the bed’s layer and the bones date back roughly 115 million years to the Cretaceous period, the last of the three epochs in which dinosaurs lived. Dinosaur ‘bone bed’ unearthed in Prince George’s County park 2023-07-12T04:00:00Z The new species has more in common with ankylosaurs discovered in China, suggesting they moved freely from Asia to Europe in the Early Cretaceous period. Isle of Wight: New dinosaur species discovered 2023-06-15T04:00:00Z Extinction intensity spikes at boundaries between periods, including the end of the Ordovician, late Devonian, end of the Permian, end of the Triassic, and end of the Cretaceous periods. Fundamentals of Biology 2015-01-01T00:00:00Z They were the dominant terrestrial animals for 150 million years, until they died out near the end of the Cretaceous period in a mass extinction. Concepts of Biology 2013-04-25T00:00:00Z It would have lived in the Late Cretaceous period alongside predators, fish and sea turtles. Long-necked dinosaur fossil found by Argentine scientists is one of biggest ever 2023-05-18T04:00:00Z Marks on the skull are interesting to study “because they give us an idea about what life was like during the Cretaceous period,” Hatton said. T rex skull unearthed in South Dakota to be auctioned in NY 2022-11-08T05:00:00Z In addition to helping piece together details about the end of the dinosaurs, researchers said the findings offered insight into the geology of the end of the Cretaceous period. Asteroid that wiped out dinosaurs triggered ‘megatsunami,’ with mile-high waves 2022-10-19T04:00:00Z They were the dominant terrestrial animals for 150 million years, until they died out in a mass extinction near the end of the Cretaceous period. Fundamentals of Biology 2015-01-01T00:00:00Z The Jurassic Encounter exhibition has been touring the UK since April and features dinosaurs from the Jurassic, Triassic and Cretaceous periods. Animatronic dinosaur catches fire at Ashton Court 2022-10-13T04:00:00Z The best-documented large impact took place 65 million years ago, at the end of what is now called the Cretaceous period of geological history. Astronomy 2016-10-13T00:00:00Z The ground is littered with busted Tyrannosaurus rex limbs and chunks of vertebrae that anchored the lofty necks of sauropods some 66.9 million years ago during the Cretaceous period. How Mammals Conquered the World after the Asteroid Apocalypse 2022-05-17T04:00:00Z Until now, no fossils of a dinosaur killed on the last day of the Cretaceous period had ever been found. How paleontologists know what life on Earth was like the day the asteroid killed the dinosaurs 2022-05-11T04:00:00Z During the Cretaceous period, another radiation of mammals began and continued through the Cenozoic Era, about 65 million years ago. Fundamentals of Biology 2015-01-01T00:00:00Z They lived in the early Cretaceous period, between 145 and 100 million years ago. Pterosaurs had brightly colored feathers like toucans, according to a new study 2022-04-26T04:00:00Z The object that collided with Earth at the end of the Cretaceous period struck a shallow sea in what is now the Yucatán peninsula of Mexico. Astronomy 2016-10-13T00:00:00Z Between 201 million and 66 million years ago, during the Jurassic and Cretaceous periods, a bounty of pint-sized mammals—none larger than a badger—lived underfoot of the dinosaurs. How Mammals Conquered the World after the Asteroid Apocalypse 2022-05-17T04:00:00Z Two basins—one in northeastern Brazil, the other in northern Mexico—have provided dozens of well-preserved fossils from the Jurassic and Cretaceous periods for research. News at a glance: Relaxed U.S. mask guidance, kids’ COVID-19 vaccine, and Facebook’s ‘F’ on climate misinformation 2022-03-02T05:00:00Z Another mass extinction event occurred at the end of the Cretaceous period, bringing the Mesozoic Era to an end. Fundamentals of Biology 2015-01-01T00:00:00Z That proposed evolutionary trajectory — from one tank-like population to another relatively lithe one — matches ecosystems earlier in the Cretaceous period that were dominated by Tyrannosaurus relatives, Mr. Paul said. They Want to Break T. Rex Into 3 Species. Other Paleontologists Aren’t Pleased. 2022-02-28T05:00:00Z It “tells us that pterosaurs got larger much earlier than we thought, long before the Cretaceous period when they were competing with birds, and that’s hugely significant,” Brusatte added. 'Superbly preserved' pterosaur fossil unearthed in Scotland 2022-02-22T05:00:00Z And its size "tells us that pterosaurs got larger much earlier than we thought, long before the Cretaceous period when they were competing with birds, and that's hugely significant". Fossil of largest Jurassic pterosaur found on Skye 2022-02-22T05:00:00Z Both fossils are from a genus previously believed to be limited to the Southern Hemisphere during the Cretaceous period. Plant fossils found in San Juan Islands like ‘finding a penguin in North America’ 2022-02-18T05:00:00Z Mammals first began to diversify in the Mesozoic Era, from the Jurassic to the Cretaceous periods, although most of these mammals were extinct by the end of the Mesozoic. Fundamentals of Biology 2015-01-01T00:00:00Z Cindy Ocamb of Corvallis, Ore., would go back to a time before Europeans, before Europe, before humans, even, to the Cretaceous period, where — or when — she could see dinosaurs and witness the advent of mammals. Perspective | Power on the time machine, we’re taking a trip into the past. Lots of pasts, actually. 2022-02-15T05:00:00Z Oviraptorosaurs, which means "egg thief lizards," were feathered dinosaurs that lived in what is now Asia and North America during the Late Cretaceous period - between 100 million to 66 million years ago. Perfectly preserved dinosaur embryo found in China 2021-12-21T05:00:00Z This is what Antarctica was like 75 million years ago during the Cretaceous period, an era known by researchers as a “super fire world.” Antarctica Was Once a Land of Fire and Not Ice 2021-11-07T04:00:00Z The marine reptiles lived between the Triassic and Cretaceous periods, which extended from 66 million to 250 million years ago. As Earth Warms, Human History Is Melting Away 2021-11-02T04:00:00Z Ranging from 50 to 180 meters deep, it runs from Montana through the Dakotas to Wyoming, with fossils dating from 66 million to 68 million years ago, in the late Cretaceous period. UW paleontologists dug up 4 dinosaurs in Montana this summer — see the fossils emerge at the Burke Museum 2021-10-24T04:00:00Z The apocalyptic spectacle marked the end of the Cretaceous period, during which terrestrial dinosaurs had dominated the landscape, and the beginning of a new Paleogene era. Dinosaurs thrived until the moment asteroid hit, excavators of controversial site claim 2021-10-22T04:00:00Z With its huge collared skull and three horns, the plant-eating triceratops was a giant of the Cretaceous period. Big John, largest known triceratops skeleton, sold at auction 2021-10-21T04:00:00Z The Cretaceous period was marked by mass extinctions, fluctuating amounts of oxygen in the atmosphere and changes in the amount of vegetation covering the planet. Antarctica Was Once a Land of Fire and Not Ice 2021-11-07T04:00:00Z These microbes were born during the warm Cretaceous period when dinosaurs dominated the Earth. How to Search for Life as We Don't Know It 2021-09-26T04:00:00Z The discovery by Philip Hadland, a curator at Hastings Museum and Art Gallery, is the last record of dinosaurs in Britain and date from the Early Cretaceous period. Dinosaur footprints found in Folkestone cliffs and coast 2021-06-18T04:00:00Z The plant-eating sauropod lived in the Cretaceous period between 92 million and 96 million years ago when Australia was attached to Antartica, according to a research paper peerj.com/articles/11317 published on Monday. New dinosaur species discovered in Australia, one of world's biggest 2021-06-08T04:00:00Z Pteropods first evolved in the early Cretaceous period, sharing the planet with dinosaurs and ammonites. Sea Angels and Sea Butterflies Reveal Climate Change Consequences 2020-11-27T05:00:00Z The creature, a toothless flying reptile, took to the skies during the Late Cretaceous period between 100.5 million and 66 million years ago. Mystery pterosaur fossils are found for the first time in Britain, misfiled in a museum’s shark collection 2020-11-12T05:00:00Z Because one of the mass extinctions we worry about is the die-off that extinguished the dinosaurs at the end of the Cretaceous period. Opinion | We all have a stake in SpaceX’s success. The pandemic ought to make clear why. 2020-08-04T04:00:00Z Prehistoric Road Trip This new episode explores the Cretaceous period, where creatures like Tyrannosaurus rex dominated the planet. What's on TV Wednesday: 'Marvel's Agents of S.H.I.E.L.D.' 2020-06-23T04:00:00Z Next stop, the Cretaceous period in a new installment of “Prehistoric Road Trip.” What’s on TV This Week: Renée Zellweger as Judy Garland and more 2020-06-19T04:00:00Z The University of Portsmouth identified it as a tapejarid, a flying pterosaur from the Cretaceous period. Pterosaur species fossil hailed as UK first 2020-05-28T04:00:00Z The megaraptors are described as "extraordinary hunters" by the experts, spanning across modern-day South America, Asia and Australia during the Cretaceous period. Fossil of terrifying megaraptor, with 14-inch claws, discovered in Argentina 2020-05-21T04:00:00Z But in the days of the Cretaceous period, when Spinosaurus roamed, it was a vast system of rivers and lakes. A Strange Dinosaur May Have Swum the Rivers of Africa 2020-04-29T04:00:00Z The teacm of British and German scientists examinded forest soil from the Cretaceous period within 559 miles of the South Pole and analyzed the preserved roots, pollen and spores within the soil. Evidence of ancient rainforest in Antarctica point to warmer prehistoric world 2020-04-02T04:00:00Z It reveals surprisingly high temperatures in the Antarctic during the Cretaceous period, and the existence of a rich, temperate rainforest just 900km from the Pole. Antarctica's ice hides an ancient rainforest 2020-03-31T04:00:00Z The evidence for Asteriornis reported by Field and colleagues implies that crown-group birds first evolved when the Cretaceous period was nearly over. Poultry through time 2020-03-17T04:00:00Z The Dinosauria and all their gigantic reptilian contemporaries, whether on land, in the sea, or in the air, disappeared from every part of the world at the end of the Cretaceous period. From the archive 2019-12-16T05:00:00Z Instead, snakes retaining two of their legs were a successful body plan that sufficed for eons until most snakes transitioned into fully limbless slitherers during the latter half of the Cretaceous period. When Snakes Had Use for a Pair of Legs 2019-11-20T05:00:00Z They prevailed for more than 160 million years before vanishing along with the nonbird dinosaurs at the end of the Cretaceous period, around 66 million years ago. Pterosaurs Were Monsters of the Mesozoic Skies 2019-09-17T04:00:00Z The exhibit will also offer 3D projection mapping, holograms and interactive video, allowing visitors to see what Victoria's life might have been like during the Cretaceous period, 66 million years ago. Victoria, second-most complete Tyrannosaurus rex skeleton, set to go on display 2019-09-16T04:00:00Z In the badlands of North Dakota, a California college student found the 65-million-year-old fossil of a partial Triceratops skull among plant fossils from the Cretaceous period. Massive 1,100-pound bone of ‘world’s biggest dinosaur’ found 2019-07-26T04:00:00Z In the badlands of North Dakota the fifth-year student from the University of California, Merced found the 65-million-year-old fossil of a partial Triceratops skull among plant fossils from the Cretaceous period. College student finds 65-million-year-old fossil of Triceratops skull in North Dakota badlands 2019-07-25T04:00:00Z They include many from the Cretaceous period, 145 million to 66 million years ago, which ended with the disappearance of the dinosaurs. Brazil wins legal fight over 100-million-year-old fossil bounty 2019-06-10T04:00:00Z The crab's giant eyes likely helped it to hunt smaller crustaceans while swimming in the ancient Cretaceous period oceans. 'Utterly bizarre' chimera crab fossil discovered: 'Makes you wonder 'what else is out there' 2019-04-25T04:00:00Z The composition of those beads, or tektites, further suggests that they were formed when a massive asteroid slammed into the Earth with the force of 10 billion Hiroshimas and ended the Cretaceous period. Opinion | You won’t find wonder on Twitter. You have to dig for that. 2019-04-09T04:00:00Z In that moment, the Cretaceous period ended and the Paleogene period began. The Day the Dinosaurs Died 2019-03-29T04:00:00Z The new species belongs to the group known as Enantiornithes, which were fairly common in the Cretaceous period, living alongside dinosaurs. 110-million-year-old bird fossil found with egg inside 2019-03-20T04:00:00Z The findings were made in the western part of Utah, an area that was part of a "lush, deltaic environment" during the Cretaceous period. 4-foot-tall T. rex cousin discovered, was a 'harbinger of doom' 2019-02-21T05:00:00Z Eleven spiders dating to the Cretaceous period were preserved in shale on the Korean peninsula, Live Science reports. Ancient, fossilized spiders still have weird and glowing eyes 2019-02-17T05:00:00Z Gates said the discovery of Galagadon will help researchers learn more the Cretaceous period prior to the extinction of non-aviary dinosaurs. Prehistoric shark with 'spaceship-shaped teeth' discovered alongside the most famous Tyrannosaurus 2019-01-21T05:00:00Z This is called the KT boundary, because it marks the dividing line between the Cretaceous period and the Tertiary period. The Day the Dinosaurs Died 2019-03-29T04:00:00Z The late Cretaceous period, which ended 66 million years ago, was a rough-and-tumble time. Why massive dinosaurs had funky ‘crazy straw’ noses 2018-12-19T05:00:00Z The insects, trapped in Lebanese amber, show that the technique was established as far back as the Early Cretaceous period. 130-million-year-old insects trapped in amber right when they were born 2018-12-20T05:00:00Z More than 85 "well-preserved" dinosaur prints from the Cretaceous period were recovered in East Sussex, along cliffs near Hastings, from 2014 through 2018, the researchers said. 'Treasure trove' of dinosaur footprints uncovered by strong storms 2018-12-18T05:00:00Z There are more than 85 markings, all of which date from the early Cretaceous period. 'Incredible' dinosaur footprints found 2018-12-17T05:00:00Z One paleontologist estimated that in the Cretaceous period Hell Creek was so thick with T. rexes that they were like hyenas on the Serengeti. The Day the Dinosaurs Died 2019-03-29T04:00:00Z “The largest members of this lineage reached 50-70 tons, but they lived much later, in the Late Cretaceous period,” Averianov explained. New giant dinosaur discovered in Russia 2018-12-15T05:00:00Z The Triassic was the opening chapter in the age of dinosaurs, followed by the Jurassic and Cretaceous periods. Surprising elephant-sized mammal cousin lived alongside dinosaurs 2018-11-22T05:00:00Z The fossil, a toe bone, is thought to be about 103 million years old, dating back to the Cretaceous period. Researchers discover Oregon’s first dinosaur fossil 2018-11-21T05:00:00Z During the Late Cretaceous period, massive dinosaurs walked the Earth, but it's the diminutive beetle, which measures 0.1 inches long, that surprised the researchers. 99 million-year-old beetle found trapped in amber 2018-10-30T04:00:00Z The baby snake lived in the forests of Myanmar during the Cretaceous period. Baby snake fossil 'frozen in time' 2018-07-19T04:00:00Z “Volgatitan is one of the oldest titanosaurian sauropods which lived in the beginning of the Early Cretaceous period, some 130 million years ago. However, it is quite large comparative to other earliest Cretaceous sauropods.” New giant dinosaur discovered in Russia 2018-12-15T05:00:00Z In the real world, paleontologists have found huge numbers of insects and other invertebrates in amber, including blood-sucking ticks from the Cretaceous period. Could Humans and Dinosaurs Coexist? Here's the Science. 2018-06-22T04:00:00Z This means any would-be paleoichnologist needs to figure out where to find exposed rock from the Triassic, Jurassic and Cretaceous periods — about 230 million to 66 million years ago. How to find fossils: Lessons from a self-taught dinosaur tracker 2018-06-16T04:00:00Z Now, lumps of amber dating back to the Cretaceous period have revealed a set of four tiny tropical frogs that lived alongside the dinosaurs, making them the oldest frog fossils of their kind. World's Oldest Rain Forest Frogs Found in Amber 2018-06-14T04:00:00Z Myanmar is seen as a treasure trove of exciting fossil discoveries from the Cretaceous period, between 145 and 66 million years ago. Baby snake fossil 'frozen in time' 2018-07-19T04:00:00Z Dr. Hoffmann, who wrote a perspective that accompanied the study, said she was surprised to see a haramiyid fossil among the thousands of dinosaur specimens found in North America from the Cretaceous period. Big Discovery in a Tiny Mammal-Like Skull Found Under a Dinosaur’s Foot 2018-05-23T04:00:00Z The Cretaceous period, which followed on from the Jurassic, was home to many of the dinosaurs which feature heavily in the film, including Tyrannosaurus rex, Velociraptor and Triceratops. Does Jurassic Park make scientific sense? 2018-06-04T04:00:00Z The long-standing question, then, is why certain birds lived while others died in the mass extinction event at the end of the Cretaceous period? How Did Dino-Era Birds Survive the Asteroid 'Apocalypse'? 2018-05-24T04:00:00Z There’s the stately, even pace of the clauses, like a sentence diagramed by a tweedy lecturer; the stuffy hyperbole of “Cretaceous period”; the little fluff of emphatic plumage in “extravagantly.” New Sentences: From a Tweet by Seamas O’Reilly 2018-05-16T04:00:00Z The feathered ancient relatives of modern birds, oviraptorosaurs lived in the Late Cretaceous period, at least 67 million years ago. How the 'chickens from hell' nested 2018-05-15T04:00:00Z During the very latest part of the Cretaceous period, when sea levels were higher, the predator lived in an island archipelago. Ancient Flying Predator Found in Transylvania 2018-05-08T04:00:00Z They lived in the Upper Cretaceous period, between 100 million and 66 million years ago. Scratches on dinosaur teeth reveal their fierce, efficient eating habits 2018-04-27T04:00:00Z This is scientific storytelling at its most visceral, striding with the beasts through their Triassic dawn, Jurassic dominance and abrupt demise in the Cretaceous period, which spared only the theropods from which birds are descended. A visceral history of dinosaurs, the world through the nose of a dog and the psychological secrets of the plot twist: Books in brief 2018-04-23T04:00:00Z Examining one Cretaceous period clutch in 2010, Jeffrey Wilson of the University of Michigan in Ann Arbor discerned what appeared to be snake bones. India’s paleontologists fight destruction of its fossil riches 2018-04-04T04:00:00Z He almost has to shout over the interstate rush as he picks up shales and says they’re from the Cretaceous period - much older than even the estimated 25 million-year-old butte. Colorful Colorado: Spanish Peaks country’s mythical rocks 2018-03-24T04:00:00Z Though they look remarkably similar, alligators and crocodiles diverged evolutionarily during the Late Cretaceous period some 80 million years ago. A Newly Discovered Difference Between Alligators and Crocodiles 2018-03-12T04:00:00Z There's also Brian Atkinson, a postdoctoral researcher at the University of Kansas who focuses on seed plants from the Cretaceous period, which is after the Permian. Five New Fossil Forests Found in Antarctica 2018-03-16T04:00:00Z There, he discovered four species of dinosaurs, including a predatory type known as the Spinosaurus, all from the Cretaceous period. Rare dinosaur discovery in Egypt could signal more finds 2018-02-06T05:00:00Z The Triassic period find, which they have named Shringasaurus indicus, overturned the notion that horned species were exclusive to dinosaurs of the Cretaceous period, some 100 million years later. India’s paleontologists fight destruction of its fossil riches 2018-04-04T04:00:00Z Bo Wang, who worked on the creatures at the Chinese Academy of Sciences in Nanjing, said he was extremely surprised to find such key fossils from the Cretaceous period. Very creepy crawlies: 'proto-spiders' with long tails discovered in amber 2018-02-05T05:00:00Z This find dates back to the Cretaceous period, when dinosaurs like T. rex walked the Earth. Fossil sheds light on origins of spiders 2018-02-05T05:00:00Z Discovered in Egypt, the creature is one of the few dinosaur fossils found so far in Africa that dates to the late Cretaceous period, roughly 80 to 66 million years ago. Huge Dinosaur Found in Egypt Is First of Its Kind 2018-01-29T05:00:00Z The latest research suggests that ticks found a home in the dinosaur feathers, and feasted on the animals’ blood, at least as far back as the Cretaceous period, 100 million years ago. Meet Dracula, the bloodsucking tick which feasted on dinosaurs 99m years ago 2017-12-12T05:00:00Z Geological evidence suggests large numbers of the flying reptiles died in a storm in the Early Cretaceous period, about 120 million years ago. Fossilised eggs shed light on pterosaurs 2017-11-30T05:00:00Z It lived in the early Cretaceous period, as part of what’s known as the Jehol Biota, a temperate environment in northeastern China that existed from roughly 131 million to 120 million years ago. Stripes? Spots? Melanin pigment brings out new theories about dinosaurs 2017-11-03T04:00:00Z Chin and her colleagues found many examples of shell-like material within coprolites – fossil faeces – in the Kaiparowits rock formation in southern Utah, which date from the late Cretaceous period. Vegetarian dinosaurs sometimes strayed for a shellfish snack – study 2017-09-21T04:00:00Z A new fossil analysis reveals that things were different in the Cretaceous period, 110 million years ago. See the exquisite fossil that revealed the colors of a giant armored nodosaur 2017-08-03T04:00:00Z In the wake of that event some 66 million years ago, which marks the end of the Cretaceous period and the start of the Paleogene, frog species underwent rapid diversification. Extinction that killed the dinosaurs may have led to frog explosion 2017-07-03T04:00:00Z The hatchling belonged to a major group of birds known as enantiornithes, which went extinct along with dinosaurs at the end of the Cretaceous period, about 65 million years ago. Baby Bird from Time of Dinosaurs Found Fossilized in Amber 2017-06-07T04:00:00Z But the solenodons’ lonely lineage diverged from the rest of the mammals’ back in the Cretaceous period, when the dinosaurs still had more than ten million years left on Earth. Conservationists Could Be Saving More Biodiversity in Less Space 2017-05-24T04:00:00Z The amber deposits of northern Myanmar harbor one of the most diverse arrays of animals from the Cretaceous period. Dinosaur tail trapped in amber sheds light on evolution of feathers 2016-12-08T05:00:00Z At the end of the Cretaceous period, roughly 67 million years ago, bugs were nibbling away with abandon. How long did it take for life to rebound after the death of the dinosaurs? 2016-11-07T05:00:00Z The site contains thousands of 65 million-year-old fossils from the Cretaceous period, and the school now uses it for research and education. Rowan University gets $25M donation to expand fossil park 2016-10-17T04:00:00Z Mined in the Hukawng Valley in northern Myanmar, Burmese amber deposits contain possibly the largest variety of animal and plant life from the Cretaceous period, which lasted from 145.5 to 65.5 million years ago. Baby Bird from Time of Dinosaurs Found Fossilized in Amber 2017-06-07T04:00:00Z They suggest the existence of a species about 77 million years ago, during the late Cretaceous period, that was much smaller than the giant pterosaurs thought to dominate then. Tiny pterosaur claims new perch on reptile family tree 2016-08-30T04:00:00Z "It is a record in size for carnivorous dinosaurs from the end of the Cretaceous period in South America," he added. Giant 1.2 metre wide dinosaur footprint discovered in Bolivia - CBBC Newsround BBC Newsround 2016-07-27T04:00:00Z "It is a record in size for carnivorous dinosaurs from the end of the Cretaceous period in South America." Meter-wide dinosaur print, one of largest ever, found in Bolivia 2016-07-26T04:00:00Z But by the time the creatures made it to the Late Cretaceous period, about 80 million years ago, they lost a finger and their arms became shorter. New Dinosaur and T. Rex Were Brothers in Tiny Arms 2016-07-13T04:00:00Z The recently discovered species hails from the late Cretaceous period and is notable for its bizarre body forms. New Spider With Horned Fangs Found in Dinosaur-Era Amber Two tiny wings locked in amber 99 million years ago suggest that in the middle of the Cretaceous period — when dinosaurs still walked the planet — bird feathers already looked a lot like they do today. Bird wings trapped in amber are a fossil first from the age of dinosaurs 2016-06-27T04:00:00Z Ants were just beginning to diversify into different groups in the Cretaceous period, and most of them were generalists with more typical body shapes. 99-million-year-old ‘unicorn ant’ boasted a bizarre prey-catching horn 2016-05-27T04:00:00Z The ichthyosaurs are a large group of marine reptiles that were common in the Jurassic and the Cretaceous periods. Fossil gives clues to extinction 250 million years ago - BBC News 2016-05-23T04:00:00Z These dinosaurs are some of the closest relatives of modern birds - but, at the end of the Cretaceous period, many disappeared, including the toothed birds. Seed clue to how birds survived mass extinction - BBC News 2016-04-21T04:00:00Z The rock layer marking the end of the Cretaceous period was rich in iridium, a metal that is rare in Earth’s crust but more common in meteorites and asteroids. What Killed the Dinosaurs? Science Has Had Some Wild Ideas They determined that it lived in the forests that carpeted the region about 100 to 95 million years ago, during the Late Cretaceous period. New York Today: A Dinosaur’s Debut 2016-01-14T05:00:00Z All contain sediments of the Dakota Sandstone, a geological formation laid down during the Cretaceous period, which stretched from about 145 million to 66 million years ago. Dinosaurs may have danced like birds to woo mates 2016-01-07T05:00:00Z Ceratopsia was a group of plant-eating horned dinosaurs that lived in the Cretaceous period. Fossil of dog-sized horned dinosaur shows east-west divide in America 2015-11-30T05:00:00Z Indeed, that is precisely what happened 66 million years ago, at the end of the Cretaceous period. What Killed the Dinosaurs 2015-11-23T05:00:00Z Multituberculates lived alongside dinosaurs, but managed to survive the mass extinction at the end of the Cretaceous period. Ancient Toothy Mammal Survived Dino Apocalypse 2015-10-05T04:00:00Z The study, published Thursday in the journal Science, puts a twist on the consensus explanation of the mass extinction at the end of the Cretaceous period. Scientists suggest a new, earth-shaking twist on the demise of the dinosaurs 2015-10-01T04:00:00Z This particular specimen, from northern Myanmar, is a scale insect that lived 100m years ago, during the Cretaceous period, when dinosaurs flourished. Cretaceous insects 2015-04-01T04:00:00Z The exhibit, which opened Jan. 17, highlights creatures from the late Cretaceous period, more than 70 million years ago. EXCHANGE: Sea monsters swim again at Rockford museum 2015-02-06T05:00:00Z Jurassic, Cretaceous and Tertiary flora were also lush, and recent fossil discoveries document the presence of terrestrial dinosaurs in Antarctica during the Jurassic and Cretaceous periods. Strange Life in an Improbable Place 2014-12-08T05:00:00Z Theropod dinosaurs include the largest carnivorous predators which dominated the Earth during the Jurassic and Cretaceous periods. Egg shape clue to bird survival 2014-11-05T05:00:00Z In the late Cretaceous period, the site was a mixed forest of conifers and broad-leafed trees cut through by meandering waterways. Battleship beast: colossal dinosaur skeleton found in southern Patagonia 2014-09-04T04:00:00Z There are more than 200 tracks in an area smaller than a football field from 10 different ancient animals that lived during the early Cretaceous period, said Utah Bureau of Land Management paleontologist ReBecca Hunt-Foster. Dinosaur footprints set for public display in Utah 2014-08-22T04:00:00Z The show, based on an award-winning BBC Television series, travels 200 million years from Triassic to the Jurassic and Cretaceous periods, and features 10 species of dinosaur. Updated dinosaurs stalk America in arena show 2014-08-02T04:00:00Z If you were a dino living at the end of the Cretaceous period, you were pretty much doomed. Were the dinosaurs doomed? Some say maybe not 2014-07-28T04:00:00Z Among the fossils on display were several from the Cretaceous period in a piece titled “Graveyard of the Oviraptors,” a reference to a kind of dinosaur suspected of eating the eggs of other dinosaurs. US officials: Dinosaurs returning home to Mongolia 2014-07-10T04:00:00Z It is also known that flowering plants sailed majestically through the life-destroying asteroid impact at the end of the Cretaceous period, which did for the dinosaurs and many other animals. Double or quits 2014-06-26T04:00:00Z The site is one of the largest areas of dinosaur tracks from the early Cretaceous period known to exist in North America, she said. Dinosaur footprints set for public display in Utah 2014-08-22T04:00:00Z Researchers said the marine reptiles, buried by rocks from the Tyndall glacier, lived between the Triassic and Cretaceous periods, which extended from 250m to 66m years ago. Chilean scientists make huge fossil find 2014-06-04T04:00:00Z In the Early Cretaceous period, just over 100 million years ago, Australia lay alongside Antarctica, which straddled the South Pole as it does today. Dinosaurs of Polar Australia 2014-05-26T04:00:00Z Scientists believe it is a previously undiscovered species of titanosaur — a herbivore, luckily for other dinosaurs who lived during the Late Cretaceous period. 'Biggest Dinosaur Ever' Unearthed in Argentina 2014-05-17T04:00:00Z Researchers now believe several different tyrannosaur types lived alongside each other in Asia during the Cretaceous period - hunting different prey. New Tyrannosaur named 'Pinocchio' 2014-05-07T09:02:26Z Jason Brougham, who is working on a diorama for the coming show, researched the pterosaurs and fish that would be included, as well as the plant life from the early Cretaceous period. Behind the Scenes at ‘Pterosaurs: Flight in the Age of Dinosaurs’ 2014-03-31T21:57:23Z By comparison, 85 percent of life died off during the dinosaur-killing extinction at the end of the Cretaceous period, 66 million years ago. Worst Mass Extinction Ever Took Only 60,000 Years 2014-02-11T11:10:00Z Paleontologists believe the dinosaur lived 80 million years ago in the late Cretaceous period on a landmass in the flooded central part of North America. New dinosaur was T. rex’s ‘great uncle’ 2013-11-08T00:41:31Z The previously oldest known flowering plant-like pollen dates from the Early Cretaceous period. Earlier origin for flowering plants 2013-10-01T19:40:40Z That happened 66m years ago, at the end of the Cretaceous period. Mass extinctions: Small but deadly 2013-07-25T14:59:45Z He noted that during the Cretaceous period, which ended about 65 million years ago, much of what is now central northern Mexico was on the coast. Archaeologists discover dinosaur tail in northern Mexico 2013-07-23T01:01:35Z Conifers also dominated both before and after the major mass extinction events at the end of the Permian and Cretaceous periods, around 250 and 65Myr ago, respectively. The Norway spruce genome sequence and conifer genome evolution 2013-05-29T17:21:22.577Z The Tyrannosaurus handed back on Monday is thought to date from the Cretaceous period The US is to return more than a dozen illegally smuggled dinosaur skeletons to Mongolia. US to return dinosaurs to Mongolia 2013-05-11T08:14:51Z Based on the increase in abundance and diversity of flowering plants during the Early Cretaceous period - approximately 140 million years ago - it has been assumed that they originated in this period. Earlier origin for flowering plants 2013-10-01T19:40:40Z With their fleshy, lobed fins — complete with bones and joints — and round, paddle-like tails, they look strikingly similar to the coelacanths that lived during the Cretaceous period, when dinosaurs still roamed Earth. ‘Living fossil’ genome unlocked 2013-04-17T17:20:38.200Z “Most of our record of dinosaur embryos is concentrated in the Late Cretaceous period,” says David Evans, curator of vertebrate palaeontology at the Royal Ontario Museum in Toronto. Oldest Dinosaur Embryo Fossils Discovered in China 2013-04-11T13:45:00.380Z That means the Christmas tree in your living room right now is nearly identical to what existed during the Cretaceous period. Conifer genome constant for 100 million years 2012-12-13T22:09:00Z Again, at the end of the Cretaceous period 65 million years ago, large number of species died, including the dinosaurs. Why Worry About The World? 2012-11-21T13:44:09Z They ranged widely in North America, Europe, and Asia during the Upper Cretaceous period, about 100 million years ago to 65 million years ago. Cows of the Cretaceous 2012-10-04T19:05:00Z The previous earliest records of arthropod-containing amber dated back to the Cretaceous period, around 135 million years ago. Amber drops yield ancient mites 2012-08-28T14:55:43Z The end of the Cretaceous period also coincided with the extinction of the dinosaurs, as well as once-abundant marine animals such as ammonites. Remarkable Creatures: ‘Nature’s Masons’ Do Double Duty as Earth’s Storytellers 2012-06-25T22:33:39Z This species roamed what is now Central Asia during the Cretaceous period. U.S. Auction House to Help Mongolia Trace Dinosaur's Origin 2012-05-30T16:45:09.513Z Yes, they concluded — in western North America in the Late Cretaceous period. Existential Angst for the Torosaurus as Species Is Disputed 2012-03-05T21:09:54Z Some of the Loricata have persisted with little change from the Cretaceous period to the present day. Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 7 "Crocoite" to "Cuba" 2012-01-22T03:00:24.397Z In Dutch Guiana there are a few small patches supposed to belong to the Cretaceous period. Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 6 "Groups, Theory of" to "Gwyniad" 2011-12-16T03:00:12.320Z He learned that the topmost layer of the rocks from the Cretaceous period always contained a diverse array of large fossil forams. Remarkable Creatures: ‘Nature’s Masons’ Do Double Duty as Earth’s Storytellers 2012-06-25T22:33:39Z One of the traits which allowed dinosaurs to dominate the fauna of the Jurassic and Cretaceous periods was that they grew rapidly. Palaeontology: The hare and the tortoise 2011-12-01T16:06:02Z They all thrived in the warm swamplands — similar to Louisiana today — that dominated this area in the Cretaceous period about 110 million years ago. Dinosaur hunters make curious find in Prince George?s County 2011-09-22T00:50:13Z Until now, the oldest known ancestor to placentals was a small mammal that dates back about 125 million years, to the Cretaceous period. Observatory: Ancestors of Humans and Kangaroos Split Even Earlier, Fossil Indicates 2011-08-24T19:20:53Z Some 65.5m years ago, at the end of the Cretaceous period, the Earth collided with an asteroid and the biggest terrestrial beasts in history were no more. The rise of the dinosaurs: Pardon! 2011-07-21T14:01:05Z The scientists proposed that the iridium was fallout from an asteroid that struck earth at the end of the Cretaceous period, 65 million years ago. Remarkable Creatures: ‘Nature’s Masons’ Do Double Duty as Earth’s Storytellers 2012-06-25T22:33:39Z Researchers from University College London, who studied the fossil, say it was just days from giving birth when it died and was buried during the Cretaceous period. Fossil is first pregnant lizard 2011-07-21T03:58:41Z It's also the only access to the late Cretaceous period on the entire eastern seaboard. New Jersey fossil dig endangered by development plan 2011-07-02T15:10:22Z The native Paretroplus are striking fish, deep bodied forms that bear a close resemblance to their closest relatives on the Indian subcontinent, the genus Etroplus, despite being isolated since the Late Cretaceous period. Scientist at Work: Is It Too Late for the Damba? 2011-06-20T15:55:38Z They were characteristic of the Later Mesozoic, more especially of the Cretaceous period, and must have been formidable enemies to the fishes of their time. The Chain of Life in Geological Time A Sketch of the Origin and Succession of Animals and Plants 2011-06-01T02:00:24.880Z During the later part of the Cretaceous period the sea gradually retreated and left the whole country dry. Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 7 "Fox, George" to "France" 2011-05-15T02:00:07.897Z By the end of the Cretaceous period about 65 million years ago, the number of leaf veins per unit area was very similar to that of modern rainforest leaves. First Rainforests Arose When Plants Solved Plumbing Problem 2011-05-05T15:53:00Z This site is the last existing window into the ancient Cretaceous period in the eastern half of the United States. New Jersey fossil dig endangered by development plan 2011-07-02T15:10:22Z Following the Cretaceous period came the Tertiary period, during which the continent assumed very nearly its present outline. North America 2011-05-05T02:00:20.027Z Thus the plant takes precedence of the animal, and the preparation was made for the mammalian life of the Eocene by the introduction of the modern flora in the Cretaceous period. The Chain of Life in Geological Time A Sketch of the Origin and Succession of Animals and Plants 2011-06-01T02:00:24.880Z Denmark belongs to the Cretaceous period, as does also a large part of Russia between the Volga and the basin of the Dnieper. The New Gresham Encyclopedia Volume 4, Part 3: Estremoz to Felspar 2011-04-14T02:00:59.373Z The Dinosaurs were the dominant land animals of the Jurassic and Cretaceous periods. The New Gresham Encyclopedia Volume 4, Part 1: Deposition to Eberswalde 2011-04-14T02:00:57.977Z The assembled family tree shows that lice started to radiate into new species well before the end of the Cretaceous period, Dr. Smith and his colleagues report in the current issue of Biology Letters. As Dinosaurs Waned and Mammals Rose, the Lowly Louse Kept Pace 2011-04-06T20:07:46Z During the Cretaceous period great changes took place in the geography of the still growing continent, as may be seen by the map illustrating that period. North America 2011-05-05T02:00:20.027Z Most DNA studies say yes, but many paleontologists think that the majority of today's lineages of birds and mammals emerged only after the Cretaceous period was over. Did Feathered Dinos Spread Lice? 2011-04-06T18:50:59Z Pietra forte of the Cretaceous period is quarried north and south of the city, and has been used for centuries as paving stone and for the buildings. Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 5 "Fleury, Claude" to "Foraker" 2011-04-03T02:00:20.883Z The Jurassic and Cretaceous periods were free from any violent folding or mountain building, and the sea again spread over a large part of the northern continent. Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 8 "Ethiopia" to "Evangelical Association" 2011-03-05T03:00:24.537Z He's optimistic because of evidence that Zaedyus mirrors Jubilee's geology, formed in the Cretaceous period when the African and South American land masses began to separate. Did the Continental Drift Create an Oil Bonanza? 2011-02-24T22:00:00Z This makes it difficult to establish whether conifers were arming themselves against taller dinosaurs or against early mammals and birds that were also beginning to appear in the late Jurassic and early Cretaceous periods. Dinosaur Munchies May Have Bulked Up Pine Cones 2011-02-23T16:58:53Z In the past 20 years, however, we are finding more sauropods from the Early Cretaceous period, and the picture is changing. Move over T.rex - make way for 'thunder-thighs' 2011-02-23T02:32:12Z Previous research determined that pterosaurs -- flying winged reptiles -- also dwelled during the Cretaceous period in what is now Denali, he said. Tracks of two prehistoric birds found in Alaska 2011-01-31T23:57:44Z Pterosaurs were flying reptiles of various sizes that successfully coexisted with dinosaurs from the late Triassic period to the Cretaceous period. Observatory: A 160-Million-Year-Old Pterosaur and Its Egg Are Discovered 2011-01-21T17:16:47Z The division of North America into two land masses prevailed for about 27 million years during the late Cretaceous period, 95 to 68 million years ago. The Newest (and Horniest) Dinosaur: the Kosmosaurus 2010-09-24T21:00:00Z The find touched off more than 150 years of sporadic but prolific fossil discoveries in the area, helping scientists render an increasingly detailed portrait of the lush, diverse environment of Maryland in the Cretaceous period. Laurel area rich in dinosaur fossils is dedicated as a park 2009-10-27T04:00:00Z The dinosaur lived during the Early Cretaceous period, about 130 million years ago. Observatory: A Humpbacked Dinosaur Has a Unique Story to Tell 2010-09-14T04:43:00Z The discoverers reported on Monday that the dinosaur, the size of a gigantic turkey, was a meat-eating creature that lived more than 65 million years ago in the Late Cretaceous period. Fossil Hunters in Romania Find a 2-Clawed Relative of Velociraptor 2010-08-30T21:32:00Z The Tethys Sea — an ancient ocean that girded the equator in the Cretaceous period, some 100 million years ago, in the heyday of the dinosaurs — became a sprawling factory. Tracing Oil Reserves to Their Tiny Origins 2010-08-02T22:33:00Z The dinosaur, a large plant-eater marked by its gaudy heart-shaped headgear, lived about 75 million years ago in the late Cretaceous period. From Museum Basement, a ?New? Dinosaur 2010-07-09T22:38:00Z What was going on in the Jurassic and Cretaceous periods that allowed the largest known land animals, like the Brontosaurus, to thrive and survive? Q & A: So Big! 2010-05-31T20:02:00Z The researchers discovered its exquisitely well preserved skeleton in sediments dating from the Upper Cretaceous period in Inner Mongolia. Clue in the claws: New dinosaur species related to Velociraptor 2010-03-19T00:26:00Z This 65.5-million-year-old layer of Earth separates fossils of the Cretaceous period from those of the Tertiary period. Dinosaur extinction followed asteroid impact 65 million years ago, panel says 2010-03-09T05:00:00Z A similar accident took place when Africa and South America slowly pulled apart in the Cretaceous period, forming the narrow beginnings of the South Atlantic. Tracing Oil Reserves to Their Tiny Origins 2010-08-02T22:33:00Z The fossils here -- more than 15,000 fractured, mangled and blackened bones from about 65 million years ago in the late Cretaceous period right before they went extinct -- support theories of a catastrophe. 2010-01-26T05:00:00Z But most of our original fossils are from the Cretaceous period. 2010-01-28T20:25:00Z And now following on these came our Wealden strata, the beginning of the Cretaceous period. The Geological Story of the Isle of Wight The eruptions began towards the close of the Cretaceous period and continue to the present day. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 6 "Celtes, Konrad" to "Ceramics" It is already ascertained, that the red sandstone and red marl containing the rock-salt of Cardona in Catalonia is newer than the Oolitic, if not more modern than the Cretaceous period. Principles of Geology or, The Modern Changes of the Earth and its Inhabitants Considered as Illustrative of Geology Almost throughout the Upper Cretaceous period the marine invasion continued, varied here and there by slight movements in the opposite sense which did not, however, interfere with the quiet general advance of the sea. Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 6 "Coucy-le-Château" to "Crocodile" We can hardly doubt that some such change occurred between the Lower and Upper Cretaceous periods, the floras of which exhibit such an extraordinary contrast in general character. Island Life Or the Phenomena and Causes of Insular Faunas and Floras The Scaphites and Crioceras are Cephalopoda, related to the Ammonites; but in this Lower Cretaceous period a remarkable development took place; many of the shells began to take curious forms, to unwind as it were. The Geological Story of the Isle of Wight British volcanic eruptions now under consideration are all later than the Cretaceous period. Volcanoes: Past and Present Much of the Danish chalk, including the well-known limestone of Faxe, belongs to the highest or “Danian” subdivision of the Cretaceous period. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 2 "Demijohn" to "Destructor" Gradually, however, they took a subordinate place, and by the close of the Cretaceous period the angiosperms had gained the upper hand. Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 6 "Coucy-le-Château" to "Crocodile" We have in the Lower Cretaceous period an almost tropical climate in France and England, a somewhat lower temperature in the United States, and a mild insular climate in the Arctic regions. Island Life Or the Phenomena and Causes of Insular Faunas and Floras Entombed in the rocks of the Jurassic and Cretaceous periods, many lizard-like animals of gigantic size called saurians were found. Wealth of the World's Waste Places and Oceania One of the most plentiful rocks over vast areas of Mexico, and that which forms the striking variation of scenery, is the mountain limestone, the excessively hard stratified crystalline rock of the Lower Cretaceous period. Mexico Its Ancient and Modern Civilisation, History, Political Conditions, Topography, Natural Resources, Industries and General Development The deposits of the boulder formation rest generally on limestone of the Cretaceous period, which in many places comes near the surface and forms cliffs on the sea-coast. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 2 "Demijohn" to "Destructor" In the Cretaceous period the outstanding events included the waning of giant reptiles, the modernising of the flowering plants, and the multiplication of small mammals. The Outline of Science, Vol. 1 (of 4) A Plain Story Simply Told This group takes us back in imagination to the Cretaceous period, more than three millions of years ago, when Trachodonts were among the most numerous of the dinosaurs. Dinosaurs With Special Reference to the American Museum Collections True dicotyledons appear very much later, in the Cretaceous period, and only in its upper division, if we except a single species from the Urgonian beds of Greenland. Darwinism (1889) Lastly, true Crocodiles are known to have existed in considerable numbers in the Cretaceous period. The Ancient Life History of the Earth A Comprehensive Outline of the Principles and Leading Facts of Palæontological Science Some of the tuffs may be of the Jurassic age, though the Cretaceous period is also largely represented. Tom Swift and His Big Tunnel, or, the Hidden City of the Andes The exact date of the maximum development of this folding is unknown, but it had done its work and some 10,000 ft. of strata had been removed before the commencement of the Cretaceous period. The Project Gutenberg Encyclopedia Volume 1 of 28 To cite an example of high geological antiquity, M. Hebert has demonstrated that, during the Oolitic and Cretaceous periods, similar inequalities in the vertical movements of the earth's crust took place in Switzerland and France. The Antiquity of Man The number of genera of Monte Bolca fish is, according to Agassiz, no less than seventy-five, twenty of them peculiar to that locality, and only eight common to the antecedent Cretaceous period. The Student's Elements of Geology The Megalosaurus of the Oolites continued to exist in the Cretaceous period; and, as we have previously seen, it was carnivorous in its habits. The Ancient Life History of the Earth A Comprehensive Outline of the Principles and Leading Facts of Palæontological Science Except, to some extent, the last of these points, there is no difference of opinion, and therefore, from the evolutionary point of view, the Cretaceous period merits the title of a revolution. The Story of Evolution The most important Jurassic genera of Deinosauria are Megalosaurus and Cetiosaurus, both of which extend their range into the Cretaceous period, in which flourished, as we shall see, some other well-known members of this order. The Ancient Life History of the Earth A Comprehensive Outline of the Principles and Leading Facts of Palæontological Science It is not till we arrive at the Cretaceous period that they begin to appear, sparingly at first, and only playing a conspicuous part, together with the palms and other endogens, in the Tertiary epoch. The Antiquity of Man The fossil fish, of which there are no less than 117 species known as British, resemble generically those of the Oolite, but differ, according to M. Agassiz, from those of the Cretaceous period. The Student's Elements of Geology Birds have not hitherto been shown, with certainty, to have existed in Europe during the Cretaceous period, except in a few instances in which fragmentary remains belonging to this class have been discovered. The Ancient Life History of the Earth A Comprehensive Outline of the Principles and Leading Facts of Palæontological Science For reasons which will appear later we must note carefully this rise of land at the very beginning of the Cretaceous period. The Story of Evolution In Britain there occur no beds containing Chalk fossils, or in any way referable to the Cretaceous period, above the true White Chalk with flints. The Ancient Life History of the Earth A Comprehensive Outline of the Principles and Leading Facts of Palæontological Science As regards animal life, the Protozoans of the Cretaceous period are exceedingly numerous, and are represented by Foraminifera and Sponges. The Ancient Life History of the Earth A Comprehensive Outline of the Principles and Leading Facts of Palæontological Science But even if that were the case, it is clear that finally an extensive depression took place in that part of Europe where the deep sea of the Cretaceous period was afterwards brought in. The Student's Elements of Geology With regard to the Cephalopods, the chief point to be noticed is, that all the beautiful and complex forms which peculiarly characterised the Cretaceous period have here disappeared. The Ancient Life History of the Earth A Comprehensive Outline of the Principles and Leading Facts of Palæontological Science However, the sea recovered its lost territory, or compensation for it, and the middle of the Cretaceous period witnessed a very considerable extension of the waters over America, Europe, and southern Asia. The Story of Evolution Even during the Cretaceous period there had been rich forests of Mesozoic vegetation covering about a hundred thousand square miles in the Rocky Mountains region. The Story of Evolution The process seems very rapid as we write it, but it must be remembered that the first half of the Cretaceous period means a million or a million and a half years. The Story of Evolution Eastern America, it may be recalled, is much higher than western until the close of the Cretaceous period. The Story of Evolution The wonderful Dicotyledonous flora of the Upper Cretaceous period similarly surprises us without any prophetic annunciation from the older Jurassic. The Ancient Life History of the Earth A Comprehensive Outline of the Principles and Leading Facts of Palæontological Science On the lowest estimates the Cretaceous period, which includes the deposit of other strata besides chalk, lasted about three million years. The Story of Evolution We saw that the Angiosperms, or flowering plants, appeared at the beginning of the Cretaceous period, and were richly developed before the Tertiary Era opened. The Story of Evolution As the cycads shrank in the Cretaceous period, the Angiosperms deployed with great rapidity, and, spreading at various levels and in different kinds of soils and climates, branched into hundreds of different types. The Story of Evolution We saw that the oak, beech, elm, maple, palm, grass, etc., were well developed before the end of the Cretaceous period. The Story of Evolution |
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