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ShareThe pelycosaurs were smallish to large (up to 3 meters or more) primitive Late Paleozoic synapsid reptiles.
They appeared during the Late Carboniferous and reached their acme in the early part of the Permian, remaining the dominant land animals for many millions of years.
A few stragglers continued into the late Permian.
For more information about the topic Pelycosaur, read the full article at Wikipedia.org, or see the following related articles:
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Note: This page refers to an article that is licensed under the GNU Free Documentation License. It uses material from the article Pelycosaur at Wikipedia.org. See the Wikipedia copyright page for more details.
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