| 单词 | Paleocene |
| 例句 | It was found near fossilized plants, giant turtles the size of a kitchen table and other creatures dating to more than 60 million years ago in the Paleocene era after the dinosaurs. Smithsonian showcases replica of monster snake 2012-03-29T17:27:10Z These tracks might have been made by a creodont, a predatory mammal about the size of a house cat, which flourished in the Paleocene and Eocene in Europe, Africa and North America. 'Spirit Whales and Sloth Tales' tracks Washington fossils and their stories 2023-09-15T04:00:00Z "The last time there was no ice on the planet, no ice at all, would've been during the Paleocene–Eocene Thermal Maximum 55 million years ago." Will glaciers go "extinct" in our lifetime? Here's what a future without polar ice would look like 2023-08-10T04:00:00Z J stands for Jurassic and Pc for Paleocene. Physical Geology 2015-01-01T00:00:00Z Yet this account has glossed over a troubling reality: we actually know very little about the mammals that endured the extinction and persevered during the next 10 million years, during the Paleocene epoch. How Mammals Conquered the World after the Asteroid Apocalypse 2022-05-17T04:00:00Z During the Paleocene Epoch, a chaotic chapter of Earth’s history that began after the cataclysmic asteroid strike 66 million years ago that doomed the dinosaurs, our ancestors appear to have prioritized brawn over brains. Dimwitted Mammals Needed Muscle More Than Brains After Dinosaurs Died 2022-03-31T04:00:00Z Some archaic Paleocene lineages disappeared, supplanted by mammals more like those living today. After killer asteroid, mammals got bigger before they got smarter 2022-03-31T04:00:00Z The last time there was no ice on the planet, no ice at all, would've been during the Paleocene–Eocene Thermal Maximum. Will glaciers go "extinct" in our lifetime? Here's what a future without polar ice would look like 2023-08-10T04:00:00Z It occurs at the end of the Cretaceous Period and begins the Paleocene Period. Site studied for proof of mass extinction 66M years ago 2020-08-22T04:00:00Z Scientists have debated these questions since the 1870s, when the first fossils of Paleocene placental mammals emerged in New Mexico. How Mammals Conquered the World after the Asteroid Apocalypse 2022-05-17T04:00:00Z The concern comes from hints that rapid methane release 55 million years ago at the boundary between the Paleocene and Eocene epochs triggered global temperature increases of five to eight degrees C globally. Methane Is on an Alarming Upward Trend 2020-07-15T04:00:00Z With dinosaur predators and plant-eaters gone, mammals began to fill these roles in the Paleocene, a time of evolutionary experimentation. After killer asteroid, mammals got bigger before they got smarter 2022-03-31T04:00:00Z It lived in the Paleocene Epoch between 66 million and 56 million years ago, according to the Canterbury Museum. 'Missing link' penguin fossil shows massive change in species after dinosaur extinction 2019-12-10T05:00:00Z Thus, it may be that as with so many others, the epiphytic niche opened wide at the dawn of the Paleocene. Did the Dinosaur-Killing Asteroid Inadvertently Help Lichens? 2019-09-15T04:00:00Z The Cretaceous has given way to the Paleocene. How Mammals Conquered the World after the Asteroid Apocalypse 2022-05-17T04:00:00Z Some 56 million years ago, during the transition between the Paleocene and Eocene epochs, Earth caught a fever. Earth’s Orbital Shifts May Have Triggered Ancient Global Warming 2019-09-03T04:00:00Z Fossils unearthed in recent years in New Mexico, Colorado and France provided insight into Paleocene mammals. After killer asteroid, mammals got bigger before they got smarter 2022-03-31T04:00:00Z The extinct penguin lived in the Paleocene Epoch between 66 million and 56 million years ago, according to the Canterbury Museum. Giant 'human-sized' monster penguin remains discovered in New Zealand 2019-08-14T04:00:00Z It lived in the Paleocene Epoch, between 66 and 56 million years ago. 'Human-sized penguin' lived in New Zealand 2019-08-14T04:00:00Z Even those odds of survival are slightly better than what our ancestors faced in the brave new world of the Paleocene. How Mammals Conquered the World after the Asteroid Apocalypse 2022-05-17T04:00:00Z Chief among the new discoveries is an event called the Paleocene Eocene Thermal Maximum, a specialty of curator Scott Wing. The Smithsonian’s renewed fossil hall sends a forceful message about climate change 2019-05-25T04:00:00Z The researchers performed CT scans on fossils of 28 Paleocene mammal specimens and 96 from the subsequent Eocene Epoch, spanning 56-34 million years ago. After killer asteroid, mammals got bigger before they got smarter 2022-03-31T04:00:00Z Mammals of the following time period, the Paleocene, show a slightly wider range of jaw shapes and expressed a greater degree of different jaw functions than their Mesozoic predecessors. Fossil Jaws a Sign of When Mammals Bounced Back 2019-05-25T04:00:00Z “It may have been born in the Cretaceous and died in the Paleocene,” he said. The Day the Dinosaurs Died 2019-03-29T04:00:00Z As ecosystems recovered in the earliest Paleocene, many of the mammals that started to multiply were eutherians, the placental antecedents that were once bit players in the Cretaceous. How Mammals Conquered the World after the Asteroid Apocalypse 2022-05-17T04:00:00Z Paleocene–Eocene warming and biotic response in the epicontinental West Siberian Sea. Rapid emergence of subaerial landmasses and onset of a modern hydrologic cycle 2.5 billion years ago 2018-05-22T04:00:00Z The researchers learned that the sense of smell - gauged by the development of the brain's olfactory bulbs - was crucial for Paleocene mammals as they seized new ecological roles. After killer asteroid, mammals got bigger before they got smarter 2022-03-31T04:00:00Z It lived in a lush area of forests, rivers, streams and lakes as Earth's ecosystems began to recover from the catastrophe that ended the Cretaceous Period and opened the Paleocene Epoch. Post-apocalyptic 'beaver' thrived after dinosaurs died 2015-10-05T04:00:00Z The oldest known hedgehog is about 57 million years old, dating to the late Paleocene. A 52-Million-Year-Old Window Into the Future 2014-07-14T04:00:00Z Some of the best fossils of the first true placentals to form diverse Paleocene communities come from New Mexico, particularly Kimbeto. How Mammals Conquered the World after the Asteroid Apocalypse 2022-05-17T04:00:00Z This conclusion relies on phylogenetic analyses that fail to discriminate between homology and homoplasy and further implies virus-like rates of nucleotide substitution in early Paleocene placentals. [Technical Comment] Technical Comment on “The Placental Mammal Ancestor and the Post–K-Pg Radiation of Placentals” 2013-08-08T17:55:19.813Z It lived during the Paleocene epoch, a geological era that spanned 65.5 to 56 million years ago, just after the mass extinction of the non-avian dinosaurs at the end of the Cretaceous. Ancient digging mammal is a `scaly anteater' relative 2012-08-29T16:45:00.187Z In the next 130,000 years during the Paleocene–Eocene Thermal Maximum, these small equines got even smaller, reaching the tiny size of 3.9 kilograms—some 30 percent lighter than their initial heft. First Horses Shrunk by Warming Climate 2012-02-23T23:15:02.277Z It has a proposed total depth of 29,000 feet targeting the Eocene and Paleocene objectives below the salt weld. A Little Bit Louder Now, Chevron Starts To Shout About Davy Jones And The Ultra Deep 2012-02-21T00:32:40Z We have known about these Paleocene placentals for nearly 150 years. How Mammals Conquered the World after the Asteroid Apocalypse 2022-05-17T04:00:00Z The Paleocene Eocene Thermal Maximum, about 55 million years ago, also points to similarly high climate sensitivity. Dot Earth Blog: On the Climate High End, Methane Time Bombs and the Lure of the New 2011-12-02T19:50:24Z As first epoch of the Cenozoic era, often called the ‘age of the mammals’, the Paleocene saw the first appearance of many modern orders of mammals such as horses and rhinos. Ancient digging mammal is a `scaly anteater' relative 2012-08-29T16:45:00.187Z The Oligocene division has been generally accepted as a distinct period, but “Paleocene” is not so widely used. Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 6 "English Language" to "Epsom Salts" 2011-02-19T03:00:59.807Z The mammalian faunas of the Paleocene of central Utah, with notes on the geology. Preliminary Survey of a Paleocene Faunule from the Angels Peak Area, New Mexico The Paleocene mammals were not so easily categorized, however. How Mammals Conquered the World after the Asteroid Apocalypse 2022-05-17T04:00:00Z Fossils collected by our team and studied using new technologies reveal how these placentals developed novel features and behaviors, helping them adapt to the early Paleocene mayhem and take advantage of open niches. How Mammals Conquered the World after the Asteroid Apocalypse 2022-05-17T04:00:00Z So this strange Asian Paleocene mammal turns out to be a very early side branch of the pangolin family tree. Ancient digging mammal is a `scaly anteater' relative 2012-08-29T16:45:00.187Z This observation confirms the evidence from pelvic anatomy that these Paleocene species really were placentals. How Mammals Conquered the World after the Asteroid Apocalypse 2022-05-17T04:00:00Z Perhaps, this high ratio reflects the imperfectly carnivorous habits of the Paleocene creodonts as a group. Preliminary Survey of a Paleocene Faunule from the Angels Peak Area, New Mexico These Paleocene oddballs garnered a troublesome reputation, and scholars began to dismiss them as “archaic” placentals. How Mammals Conquered the World after the Asteroid Apocalypse 2022-05-17T04:00:00Z As the Paleocene placentals grew larger, they diversified in other ways. How Mammals Conquered the World after the Asteroid Apocalypse 2022-05-17T04:00:00Z She performed a statistical analysis of a large data set of measurements, comparing the Paleocene species with their Cretaceous precursors and modern-day descendants. How Mammals Conquered the World after the Asteroid Apocalypse 2022-05-17T04:00:00Z For all their specializations, however, the Paleocene archaic placentals were not especially intelligent. How Mammals Conquered the World after the Asteroid Apocalypse 2022-05-17T04:00:00Z Notes on Paleocene and lower Eocene mammal horizons of northern New Mexico and southern Colorado. Preliminary Survey of a Paleocene Faunule from the Angels Peak Area, New Mexico Tom and his crew have collected thousands of fossils, which paint a vivid picture of Paleocene life within the first million years of the asteroid. How Mammals Conquered the World after the Asteroid Apocalypse 2022-05-17T04:00:00Z Compared with their minuscule Cretaceous predecessors, the Paleocene mammals did have larger brains in terms of absolute size. How Mammals Conquered the World after the Asteroid Apocalypse 2022-05-17T04:00:00Z The Paleocene was a greenhouse world; the New Mexican mammals frolicked in jungles, and crocodiles basked in the high-latitude sun. How Mammals Conquered the World after the Asteroid Apocalypse 2022-05-17T04:00:00Z South of the equator, where Cretaceous and Paleocene mammal fossils are much rarer, the story was different. How Mammals Conquered the World after the Asteroid Apocalypse 2022-05-17T04:00:00Z |
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