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Paleozoic    音标拼音: [p,eliəz'oɪk]
a. 古生代的
n. 古生代

古生代的古生代

Paleozoic
adj 1: of or relating to or denoting the Paleozoic era
n 1: from 544 million to about 230 million years ago [synonym:
{Paleozoic}, {Paleozoic era}]


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  • Paleozoic - Wikipedia
    The Paleozoic was a time of dramatic geological, climatic, and evolutionary change The Cambrian witnessed the most rapid and widespread diversification of life in Earth's history, known as the Cambrian explosion, in which most modern phyla first appeared
  • Paleozoic Era | Description, Climate, Facts | Britannica
    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 extinction event in Earth history
  • Paleozoic | U. S. Geological Survey - USGS. gov
    Paleozoic (541-252 million years ago) means ‘ancient life ’ The oldest animals on Earth appeared just before the start of this era in the Ediacaran Period, but scientists had not yet discovered them when the geologic timescale was made
  • Paleozoic Era - U. S. National Park Service
    Common Paleozoic fossils include trilobites and cephalopods, as well as insects and ferns The greatest mass extinction in Earth's history ended this era The Paleozoic Era is further divided in to seven periods sub-periods: the Cambrian, the Ordovician, the Silurian, the Devonian, the Mississippian, the Pennsylvanian, the Permian
  • The Paleozoic Era - University of California Museum of Paleontology
    The Paleozoic Era is bracketed by the times of global super-continents The era opened with the breakup of the world-continent Pannotia and closed with the formation of Pangea, as the Earth's continents came together once again Many Paleozoic rocks are economically important
  • The Paleozoic Era
    The Paleozoic took up over half of the Phanerozoic, approximately 300 million years During the Paleozoic there were six major continental land masses; each of these consisted of different parts of the modern continents
  • Paleozoology - Wikipedia
    Palaeozoology or paleozoology (Greek: παλαιόν, palaeon "old" and ζῷον, zoon "animal") is the branch of paleontology and evolutionary biology that specifically deal with the study of prehistoric organisms from the kingdom Animalia and the recovery and identification of their fossil remains from geological (or even archeological) contexts
  • Paleozoic Era summary | Britannica
    Paleozoic Era, or Palaeozoic Era, Major interval of geologic time, c 542–251 million years ago From the Greek for “ancient life,” it is the first era of the Phanerozoic Eon and is followed by the Mesozoic Era
  • Paleozoic - New World Encyclopedia
    The Paleozoic era comprises from oldest to youngest the following six geologic periods: Cambrian, Ordovician, Silurian, Devonian, Carboniferous, and Permian During the nearly 300 million years of the Paleozoic era, the fossil evidence records dramatic shifts in the forms of life on Earth
  • Paleozoic Era: Facts, Information, and Timeline - A-Z Animals
    Here’s a breakdown of the timeline, facts, and major events that took place during the Paleozoic The Paleozoic Era began about 541 million years ago and lasted till 251 9 million years ago It was the first era of the Phanerozoic Eon and is otherwise known as the “Age of Ancient Life ”





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