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Notes on the Permo-Carboniferous Reptile Dimetrodon

Alfred S. Romer
The Journal of Geology
Vol. 35, No. 8 (Nov. - Dec., 1927), pp. 673-689
Stable URL: http://www.jstor.org/stable/30060393
Page Count: 17
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Notes on the Permo-Carboniferous Reptile Dimetrodon
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Abstract

1. A nearly complete postcranial skeleton of the Permo-Carboniferous reptile Dimetrodon is described and figured. The structure and possible function of the spines are discussed, and a mechanical explanation for their origin is suggested. The specimen shows Dimetrodon to have been a long-tailed form. The skeleton is restored and a life-restoration given. 2. Models of the probable musculature of the limbs of Dimetrodon are presented.

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