A head of Middle Permian sphenacodontid synapsid Dimetrodon limbatis, drawing based on the skull from the book Review of the Pelycosauria (by Cope)
(image: Mojcaj)

A head of Middle Permian sphenacodontid synapsid Dimetrodon limbatis, drawing based on the skull from the book Review of the Pelycosauria (by Cope)

(image: Mojcaj)

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