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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
  • Paleozoic Era: Facts Information - Live Science
    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
  • 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 Definition Meaning - Merriam-Webster
    The meaning of PALEOZOIC is of, relating to, originating in, or being an era of geologic history that extends from the beginning of the Cambrian to the close of the Permian and is marked by the culmination of nearly all classes of invertebrates except the insects and in the later epochs by the appearance of terrestrial plants, amphibians, and
  • The Paleozoic Era - ScienceViews. com
    The Paleozoic Era is bracketed by two major events in earth's history It began with an unexplained explosion in animal life and ended with the world's largest mass-extinction known to man
  • Paleozoic Era | Research Starters - EBSCO
    The Paleozoic Era, spanning from approximately 544 to 251 million years ago, is the oldest era of the Phanerozoic eon and marks a significant period in Earth's history characterized by diverse and complex life forms





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