| 单词 | crinoid |
| 例句 | For instance, on that wall you see something that’s gray and unusual looking — it’s a crinoid fossil from the Cambrian Period, which is over 500 million years ago. She Loves a Good Aria. And Eskimo Goggles. 2018-10-17T04:00:00Z Ninety feet underwater we discovered an untrammeled paradise: thousands of fish wove through brightly colored coral peppered with striped crinoids, small marine animals who hold their tentacles curved like flowers. Next Stop: In the Andaman Islands, Finding Paradise Above and Below the Sea 2012-02-10T18:14:51Z Among the echinoderms found at the excavation site, the feather stars — marine invertebrate crinoids with feathery arms — were the rarest. Amateur Fossil Hunters Make Rare Find in U.K. Using Google Earth 2021-07-24T04:00:00Z Ancient sea creatures - including corals, brachiopods and crinoids - deposited their shells in the sea. Holiday candlelight tours return to Lewis & Clark Caverns 2019-12-21T05:00:00Z He studied crinoids: marine animals, related to starfish, that resemble flowers or feathers. Did a million years of rain jump-start dinosaur evolution? 2019-12-02T05:00:00Z The Hawk Eye reports that a resolution to establish the crinoid as the state fossil was introduced in the Senate by seven Democrats last week. Iowa to consider recognizing official state fossil 2018-01-23T05:00:00Z Look for Life Savers-like shapes and rectangles — these are two different cross sections of crinoids, animals also known as sea lilies. Here’s how to find D.C.’s accidental museum of paleontology 2016-08-18T04:00:00Z Many species alive today, including crinoids and brachiopods, follow this same pattern. Super-Spiky Ancient Worm Makes Its Debut 2015-06-29T04:00:00Z The trench bottom was home to an array of sea cucumbers,sea anemones, soft corals, jellyfish, comb jellyfish, giant amphipods, crinoids, crustaceans and fish. What Lives at the Bottom of the Mariana Trench? More Than You Might Think 2013-04-15T00:15:05.547Z What’s more, it was not just the crinoids that faced extinctions: amphibians and land plants lost members, too. Did a million years of rain jump-start dinosaur evolution? 2019-12-02T05:00:00Z If approved in the Senate and House of Representatives, the crinoid would join Iowa’s Official Register along with other state symbols, like the goldfinch, rose and oak tree. Iowa to consider recognizing official state fossil 2018-01-23T05:00:00Z The crinoids shared the ancient oceans with giant crocodiles and ichthyosaurs — bizarre, dolphin-like reptiles. Here’s how to find D.C.’s accidental museum of paleontology 2016-08-18T04:00:00Z Then, rummaging in his parents' barn, he happened on the first fossil he had ever collected, as a four-year-old: a crinoid, or sea lily, about the size of a button. Phylogeny: Rewriting evolution 2012-06-27T17:50:32.213Z In the year 1882 it was stated by Dr. Halm and Dr. Weinhand that they had found fossil sponges, corals, and crinoids in meteoric stones! Astronomical Curiosities Facts and Fallacies 2012-03-27T02:00:18Z Those poor crinoids and corals had a rough time of it after they died. M lange et Trois: A Trip Across Subduction Zone Madness 2012-03-07T22:15:00.213Z In the vicinity are valuable deposits of crinoid limestone, a coarse white building stone which takes a good polish. Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 8 "Haller, Albrecht" to "Harmonium" 2012-01-02T03:00:22.443Z His chief work was the description of the invertebrate fossils of New York—in which he dealt with the graptolites, brachiopods, mollusca, trilobites, echini and crinoids of the Palaeozoic formations. Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 7 "Gyantse" to "Hallel" 2011-12-26T03:00:11.613Z This was also a fossil, probably crinoid stems. De Re Metallica, Translated from the First Latin Edition of 1556 2011-11-16T03:00:21.977Z One of the least complex crinoids of that 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 A detailed account is given of one unusually successful haul of the trawl when it brought up large asteroids, sponges, crinoids, holothuria, a gigantic spider, masses of worms, crustacea, etc. North America 2011-05-05T02:00:20.027Z They are divided into lower, middle, and upper series, the middle most abounding in fossils, including corals, crinoids, brachiopods, and molluscs. The New Gresham Encyclopedia Volume 4, Part 1: Deposition to Eberswalde 2011-04-14T02:00:57.977Z This crinoid has only two circlets of plates in the cup, but the cup analysed in the adjoining diagram has in addition infrabasals and a centrale C. Fig. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 10 "Echinoderma" to "Edward" 2011-01-19T03:00:19.027Z The clay came into notice late in the 18th century on account of the local abundance of the crinoid Apiocrinus Parkinsoni. Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 4 "Bradford, William" to "Brequigny, Louis" Fig. 9.—Section of Trenton limestone, magnified, showing that it is composed of fragments of corals, crinoids, and shells. The Chain of Life in Geological Time A Sketch of the Origin and Succession of Animals and Plants 2011-06-01T02:00:24.880Z "Ha, ha!" laughed the crinoid, "that is only a mock turtle." The Book of Gud The sea bottom was still thronged with crinoids, and lamp shells, and cup corals. Earth and Sky Every Child Should Know Easy studies of the earth and the stars for any time and place In addition to these three or four circlets of plates, two other elements were once supposed essential to the ideal crinoid: the dorso-central and the oro-central. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 10 "Echinoderma" to "Edward" 2011-01-19T03:00:19.027Z Thorpe Cloud, it is highly fossiliferous, but it is usually somewhat barren except for abundant crinoids and smaller organisms. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 2 "Demijohn" to "Destructor" Buckland has calculated that in a crinoid similar to that in Fig. 52 there are no less than 150,000 little bones, and 300,000 contractile bundles of fibres to move them. The Chain of Life in Geological Time A Sketch of the Origin and Succession of Animals and Plants 2011-06-01T02:00:24.880Z The central calcareous zone abounds in corals and crinoids as well as in numerous brachiopods. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 3 "Destructors" to "Diameter" We call it the Age of Invertebrates, because these soft-bodied, hard-shelled animals, the crinoids, the molluscs, and the trilobites, with bony external skeletons and no backbones, were the most abundant. Earth and Sky Every Child Should Know Easy studies of the earth and the stars for any time and place That the crinoids are all deducible from some such simple form as that above described under the head “calycinal theory,” is now generally admitted. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 10 "Echinoderma" to "Edward" 2011-01-19T03:00:19.027Z All these crinoids were like star-fishes on stalks, and of the existing forms, Pentacrinus still passes the whole of its life, and Comatula its youth, in a stalked condition. The Contemporary Review, Volume 36, September 1879 Everywhere over this region must have grown in the shallow water great numbers of creatures called crinoids or stone lilies. The Meaning of Evolution Nor were the ancient crinoids less remarkable for the amount of nice contrivance which their structures exhibited, than the ancient molluscs or crustaceans. The Testimony of the Rocks or, Geology in Its Bearings on the Two Theologies, Natural and Revealed Just so, the ancient crinoids are now almost extinct; the sea urchins and the starfishes have succeeded them. Earth and Sky Every Child Should Know Easy studies of the earth and the stars for any time and place Some crinoids have yet another circlet below these, the constituent plates of which are called “infrabasals,” and are situated radially. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 10 "Echinoderma" to "Edward" 2011-01-19T03:00:19.027Z Few of us will probably ever have an opportunity of studying a crinoid alive, although in 193 our museums we may see them preserved in glass jars. The Log of the Sun A Chronicle of Nature's Year One of the most common is the crinoid. Diggers in the Earth There is a description of the corals, sponges, shells, and crinoids, all of them microscopic, which he photographed, in Popular Science, 20-83. The Book of the Damned Here, too, the local "tone" that has been mentioned made itself felt; thus, the little girl used the word "crinoid" every day, to designate sections of fossil crinoid stems which abounded in neighboring gravel walks. The Mind of the Child, Part II The Development of the Intellect, International Education Series Edited By William T. Harris, Volume IX. The crinoid type was differentiated by the extension of the food-grooves and associated organs along radial outgrowths from the theca itself. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 10 "Echinoderma" to "Edward" 2011-01-19T03:00:19.027Z But there is no more suggestion of an alphabet in the sign language of the North American Indian than there is of man in a crinoid. The Last Harvest Many creatures, such as the trilobites, die out, and many other forms such as the crinoids or sea lilies become fewer in kind and of less importance. Young Folks' Library, Volume XI (of 20) Wonders of Earth, Sea and Sky Besides rocks and mud there were abundant crinoids, holothurians, corals, crustaceans and "shells." The Home of the Blizzard Being the Story of the Australasian Antarctic Expedition, 1911-1914 We had the crinoid alive for ten or twelve hours. Louis Agassiz: His Life and Correspondence This, which may be called the calycinal theory, will be appreciated by comparing the structure of a simple crinoid with that of some other types. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 10 "Echinoderma" to "Edward" 2011-01-19T03:00:19.027Z In the interior the Mississippian is composed chiefly of limestones, with some shales, which tell of a clear, warm, epicontinental sea swarming with crinoids, corals, and shells, and occasionally clouded with silt from the land. The Elements of Geology The trilobites are gone, and of the crinoids only a remnant is left. Young Folks' Library, Volume XI (of 20) Wonders of Earth, Sea and Sky They are the Sphaeronites of old authors, and were considered by Professor E. Forbes as intermediate between the crinoids and echinoderms. The Student's Elements of Geology Is this not quite a parallel case with the monkeys and pachyderms? for once crinoids were the only representatives of the class of echinoderms. Louis Agassiz: His Life and Correspondence Among the echinoderms, notable for being covered with spines: starfish, feather stars, sea lilies, free–swimming crinoids, brittle stars, sea urchins, sea cucumbers, etc., represented a complete collection of the individuals in this group. Twenty Thousand Leagues Under the Sea Sea urchins have become plentiful; crinoids abound until the Cretaceous, where they begin their decline to their present humble station. The Elements of Geology In the Silurian ages, invertebrates—brachiopods and crinoids and cephalopods—were the dominant types. A History of Science — Volume 3 With the above are found no less than eleven genera of stone-lilies or crinoids, some of them, such as Cupressocrinites, distinct from any Carboniferous forms. The Student's Elements of Geology The limestone-making seas of the Silurian swarmed with corals, crinoids, and brachiopods. The Elements of Geology This subkingdom comprises at present such familiar forms as the crinoid, the starfish, and the sea urchin. The Elements of Geology Among the echinoderms, crinoids are now exceedingly abundant, sea urchins are more plentiful, and sea cucumbers are found now for the first time. The Elements of Geology The cystoid reaches its climax, but there appear now two higher types of echinoderms,—the crinoid and the starfish. The Elements of Geology |
| 随便看 |
英语例句辞典收录了117811条英语例句在线翻译词条，基本涵盖了全部常用单词及词组的例句翻译及用法，是英语学习的有利工具。