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Pelycosaur - Wikipedia, the free encyclopedia
The pelycosaurs are an informal grouping (previously considered an order) composed of basal or primitive Late Paleozoic synapsid amniotes. Some species were quite large and could grow up to 3 metres (10 ft) or more, although most species were much smaller.
https://en.wikipedia.org/wiki/Pelycosaur
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Pelycosaur - New World Encyclopedia
The pelycosaurs were smallish to large (up to 3 meters or more) primitive Late Paleozoic "mammal-like reptiles." They appeared during the Late Carboniferous and reached their acme in the early part of the Permian period, remaining the dominant land animals for many millions of years.
http://www.newworldencyclopedia.org/entry/Pelycosaur
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Ancient Finned Predator Feasted on Sharks - Livescience
During the early Permian, carnivores greatly outnumbered herbivores on land, so top predator Dimetrodon supplemented its diet by hunting sharks.
http://www.livescience.com/48387-permian-predator-dimetrodon-ate-sharks.html
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Sphenacodontidae - Wikipedia, the free encyclopedia
Sphenacodontidae (Greek: "wedge point tooth family") is an extinct family of small to large, advanced, carnivorous, Late Pennsylvanian to middle Permian pelycosaurs.
https://en.wikipedia.org/wiki/Sphenacodontidae
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Ophiacodon - Prehistoric-Wildlife
Information about the pelycosaur Ophiacodon and other prehistoric creatures.
http://www.prehistoric-wildlife.com/species/o/ophiacodon.html
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Ophiacodon - Wikipedia, the free encyclopedia
Ophiacodon (meaning "snake tooth") is an extinct genus of synapsids belonging to the family Ophiacodontidae that lived from the Late Carboniferous to the Early Permian in North America and possibly Europe.
https://en.wikipedia.org/wiki/Ophiacodon
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Dimetrodon - DinosaurFacts
The Dimetrodon resembled much of what people would misclassify as a "dinosaur", however it lived during the Permian period (about 260 million years ago) which is before most dinosaurs.
http://www.dinosaurfacts.org/Dimetrodon
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Dimetrodon - Prehistoric-Wildlife
Information about the sailbacked pelycosaur Dimetrodon and other prehistoric animals.
http://www.prehistoric-wildlife.com/species/d/dimetrodon.html
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10 Facts About Dimetrodon, the Non-Dinosaur "Dinosaur" - About
Often mistaken for a true dinosaur, Dimetrodon was actually a sail-backed reptile that lived tens of millions of years before the first dinosaurs had evolved. Here are 10 fascinating facts about this Permian pelycosaur.
http://dinosaurs.about.com/od/typesofdinosaurs/ss/10-Facts-About-Dimetrodon.htm
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Dimetrodon - Wikipedia, the free encyclopedia
Dimetrodon meaning "two measures of teeth") is an extinct genus of synapsid that lived during the Early Permian period, around 295-272 million years ago (Ma). It is a member of the family Sphenacodontidae.
https://en.wikipedia.org/wiki/Dimetrodon
