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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: 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
  • Paleozoic Era - U. S. National Park Service
    During the Paleozoic Era (541 to 251 9 million years ago), fish diversified and marine organisms were very abundant In North America, the Paleozoic is characterized by multiple advances and retreats of shallow seas and repeated continental collisions that formed the Appalachian Mountains
  • The Paleozoic Era - University of California Museum of Paleontology
    The Paleozoic is divided into six periods: the Cambrian, Ordovician, Silurian, Devonian, Carboniferous (in the U S , this is divided into the Mississippian and Pennsylvanian Periods), and Permian Most of these names derive from locations where rocks of these ages were first studied
  • Paleozoic Era: Facts, Timelines Animals and extinctions
    Noted as a time of dramatic evolutionary, climate and geological change, the Paleozoic Era lasted between 541 to 251 902 million years ago This Era is so diverse and lengthy that it has been further subdivided into six unique geologic periods ranging from the oldest to the youngest
  • 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
  • Paleozoic Era | EBSCO Research Starters
    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
  • 8. 4: Paleozoic Era - Geosciences LibreTexts
    The Paleozoic Era was dominated by marine organisms, but by the middle of the era, plants and animals had evolved to live and reproduce on land, including amphibians and reptiles





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