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, …
Paleozoic Era | Description, Climate, & Facts | Britannica
2025年1月10日 · 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 …
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 …
Paleozoic Era: Facts & Information - Live Science
2013年6月20日 · 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 …
The Paleozoic Era - University of California Museum of Paleontology
The Paleozoic is bracketed by two of the most important events in the history of animal life. At its beginning, multicelled animals underwent a dramatic "explosion" in diversity, and almost all …
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 …
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 …
Paleozoic Era - U.S. National Park Service
In North America, the Paleozoic is characterized by multiple advances and retreats of shallow seas and repeated continental collisions that formed the Appalachian Mountains. Common …
Paleozoic Era: Major Events and Important Facts
Paleozoic Era: Major Events and Important Facts. The Paleozoic Era is one of the most important geological divisions of our planet's geochronological timescale, as it marks the extensive …
Paleozoic Era - Encyclopedia.com
2018年6月11日 · The Paleozoic Era spanned that period of geologic time during which the evolution of the first invertebrates, vertebrates, terrestrial (land-based) plants, bony fish, …
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