A mounted Dimetrodon skeleton. Photos taken in 2005 at the Staatliches Museum für Naturkunde in Karlsruhe, Germany.
Dimetrodon is often mistaken for a dinosaur, but it pre-dates the earliest known dinosaurs by about 40 million years – and it’s actually more closely related to mammals.
Although its large sail is often explained as a heat-regulating structure, recent studies suggest it might have had a role in sexual selection.
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dino-sours reblogged this from avisuchian and added: Looks like it’s all or mostly cast/sculpted, FWIW
avisuchian reblogged this from lythronax-argestes-the-gore-king and added: Apparently the tail was assumed to be pretty short until a decent amount of caudal vertebrae were described in 1927, so...
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