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Two great animal faunas dominated the seas during the Paleozoic. The "Cambrian fauna" typified the Cambrian oceans; Later Paleozoic seas were dominated by crinoid and blastoid echinoderms, articulate brachiopods, graptolites, and tabulate and rugose corals.
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www.ucmp.berkeley.edu/paleozoic/paleozoiclife.html
www.ucmp.berkeley.edu/paleozoic/paleozoiclife.html
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Paleozoic - Wikipedia, the free encyclopedia
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The Paleozoic or Palaeozoic Era (from the Greek palaios (παλαιός), "old" and zoe (ζωή), "life", meaning "ancient life") is the earliest of three geologic eras of the Phanerozoic eon. The Paleo...
en.wikipedia.org/wiki/Paleozoic
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An intro to the Paleozoic era, includes a review of each of the geological sub-divisions and the various forms of life that lived during this time ... The Paleozoic Era of the Phanerozoic Eon: 542 to 251 million years ago...
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www.palaeos.com/Paleozoic/Paleozoic.htm
www.palaeos.com/Paleozoic/Paleozoic.htm
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BobAinsworth.com - The Palaeozoic Era. An illustrated geological time line for the Palaeozoic era, which includes the Cambrian, Ordovician, Silurian, Devonian, Carboniferous and Permian periods. ... The Permian period begins 286 million years ago and spans 38 million years. It is the closing period of the Palaeozoic era.
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www.bobainsworth.com/fossil/palaeozoic.htm
www.bobainsworth.com/fossil/palaeozoic.htm
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These 300 million years of the Paleozoic era realized many critical events in evolution, including the development of most invertebrate groups, life's conquest of land, the evolution of fish, reptiles, insects, and vascular plants, the formation of the supercontinent of Pangea.
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www.fossilmuseum.net/Paleobiology/Paleozoic_paleobiolog...
www.fossilmuseum.net/Paleobiology/Paleozoic_paleobiology.htm
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The Paleozoic Era is the beginning of an explosion of life forms. The Cambrian Explosion marks the era with thousands of species of life forms in the ancient seas. ... It is this characteristic, life in the ancient sea, which distinguishes the Paleozoic Era from all others. You see, the autotroph’s makeup didn’t just...
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www.fossils-facts-and-finds.com/paleozoic_era.html
www.fossils-facts-and-finds.com/paleozoic_era.html
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During the hiatus between the late Precambrian and the Paleozoic era most of the evidence of the earth's early history was destroyed by erosion. From the beginning of the Paleozoic, shallow seas began to encroach on the continents.
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www.infoplease.com/ce6/sci/A0837345.html
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During this era many new life plants and animals formed. This is also the first time there are many fossils for scientists to study. The Paleozoic Era ended when many kinds of animals and plants became extinct, probably because of climatic changes.
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library.thinkquest.org/20886/paleozoic.htm
library.thinkquest.org/20886/paleozoic.htm
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