Image: Edaphosaurus skull

Description: Skull of Edaphosaurus in lateral and dorsal view.
Title: Edaphosaurus skull
Credit: From the book: "Water Reptiles of the Past and Present", University of Chicago Press, Chicago, 1914. http://archive.org/stream/waterreptilesofp00will#page/22/mode/2up
Author: Samuel Wendell Williston (1851-1918)
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License: Public domain
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