Paleozoic Era, major interval of geologic time that began 538.8 million years ago with the Cambrian explosion, an extraordinary diversification of marine animals, and ended about 252 million years ago with the end-Permian extinction, the greatest extinct
Certain groups of fossils from this key period in the middle Paleozoic Era told one story -- perhaps a freshwater site of origin -- while other groups may point to a birthplace in the open ocean, and still others popped up in other habitat types. Shallows: 'Cradle of Evolution' for Early...
The Paleozoic Era, which ran from 541 million to 251.9 million years ago, was a time of great change on Earth. The era began with the breakup of one supercontinent and the formation of another. Plants became widespread. And the first vertebrate animals colonized land. Life in the Paleozoic ...
Paleozoic (Paleozoic era)The article presents the definition for "Paleozoic," which refers to the era of geologic time from about 540 to 245 million years ago. The Paleozoic Era is characterized by the appearance of marine invertebrate animals, primitive fish and reptiles, and land plants....
详细解释: 以下为句子列表: 英文: Cambrian: the beginning of the Paleozoic Era Animals with hard-shells appeared in great numbers for the first time during the Cambrian. 中文: 寒武纪:古生代的开始(距今5亿1,400万年前),具有硬壳的生物在寒武纪第一次大量出现。更详细... ...
What animals lived during the Paleozoic era?The Paleozoic Era:The Paleozoic Era lasted from roughly 541-252 million years ago, encompassing the Cambrian, Ordovician, Silurian, Devonian, Carboniferous, and Permian periods. A lot changed throughout this vast expanse of time....
The Paleozoic Era, From The Cambrian Explosion To The Permian Extinction. There are 6 geologic periods each with its own climate, geography, plants and animals.
noun the Paleozoic Era or group of systems. Discover More Other Words From post -Pa·le·o·zo icadjective pre -Pa·le·o·zo icadjective Discover More Word History and Origins Origin ofPaleozoic1 1830–40;paleo-+-zoic<Greekzōïkóspertaining to animals;zo-,-ic ...
Paleozoic, Paleozoic era 联想词 sedimentary沉的;fossils化石;sediments沉淀物;geologic地质的;tectonic构造的;Jurassic侏罗纪的;geological地质的;vertebrate脊椎动物;prehistoric史前的;geology地质情况;strata层; 词组| 习惯用语 paleozoic era 古生代 英语例句库 1.Myriapod animals were probably one of the invertebrate ...
The Paleozoic era was a geological time period during which terrestrial animals colonized and adapted to life on land. It had 6 distinct geological periods. Geological ErasThe time of the earth (geological time) is divided into four eons, which, from earliest to most recent are: Hadean, ...