Last week on Fossil Friday, Ruby Pines was teaching us how to draw Dimetrodon, and as she was blocking out the shapes, she drew in what she called "footy pebbles" for the feet. MaggieJo then commented that she wanted to see a Fruity Pebbles-colored Dimetrodon. So I just had to.
Dimetrodon are often traditionally posed in a squat crouch, but there have been fossil trackways found of what appear to be Dimetrodon tracks that show two things: no tail-dragging marks and a narrow gauge between both sides of the body. Both these things strongly suggest that Dimetrodon walked in an upright position, so that's how I like to depict it.
(As much as I like the idea of Dimetrodon having whiskers, a paper came out last year describing scaly body impressions that appear to have come from Dimetrodon, so it seems that sphenacodontids had scales instead of bare skin/fur like later synapsids. These guys were just a little too early for whiskers, it seems.)
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