Edaphosauridae Fossil range: Latest Pennsylvanian - Early Permian
Edaphosaurus
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Synapsida
Order:	Pelycosauria
Family:	Edaphosauridae Cope, 1882
Genera
Edaphosaurus Ianthasaurus Glaucosaurus

The Edaphosauridae are a family of mostly large (up to 3 meters or more) advanced, Late Pennsylvanian to early Permian pelycosaurs.

They were the earliest known herbivorous amniotes, and along with the Diadectidae the earliest known herbivorous tetrapods. The head is small in relation to the bulky body, and there is a tall sail along the back, which may have functioned as a thermoregulatory device.

Edaphosaur fossils are so far known only from North America and Europe.

[edit] References

• Carroll, R. L. (1988), Vertebrate Paleontology and Evolution, WH Freeman & Co.
• Reisz, R. R., 1986, Handbuch der Paläoherpetologie – Encyclopedia of Paleoherpetology, Part 17A Pelycosauria Verlag Dr. Friedrich Pfeil, ISBN 3-89937-032-5

[edit] External links

• Edaphosauridae

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