...David S. Berman; Robert R. Reisz; Thomas Martens; Amy C. Henrici Abstract A new species of the sphenacodontid synapsid Dimetrodon , D . teutonis , is described on the basis of a single, adult specimen consisting of a large portion of the presacral vertebral column. The holotype was collected from...

... that B. borealis is the sister taxon of Dimetrodon grandis , which is supported by dental characters: crowns with mesial and distal denticles and roots elongate, lacking plicidentine. An autapomorphy of B. borealis is the large facial exposure of the septomaxilla. As Bathygnathus has priority over...

...Fig. 3. Photograph and line drawing of the terminal phalanx of Dimetrodon showing the major components of the morphology and the location of three measurements used to quantify features of the flexor tubercle. a.s., articular surface; d.s., dorsal surface; f.t., flexor tubercle; l.s., lateral...

... deposits in the taxonomic and size distribution of the vertebrate fauna in comparison to other localities from the Vale Formation that preserve a greater abundance of aquatic taxa (e.g., fishes, Trimerorhachis ) and synapsids (e.g., Dimetrodon ). Minimal abrasion of the elements, relative articulation...

... of the vertebral column. Although similar, the postcranial skeletons of Dimetrodon and Secodontosaurus can be differentiated by the distinct shape and size of the latter's axial neural spine and posterior zygapophysis. La description du complexe atlas–axis du Secodontosaurus (un synapside du Permien...

...JOHN L. TILTON Abstract Dimetrodon berea , New Species The tracks (figure 1, A) are in Waynesburg sandstone obtained 0.4 mile southwest of bridge over Hughes River at Berea, Ritchie County, West Virginia. They were exposed during road work in the summer of 1927. They were cared for by Mr. David H...

... for the original description of Watongia with those of Dimetrodon and came to the conclusion that the skull was probably 24–26 cm in length. However, we disagree with this interpretation because the proper comparison is with a varanopid like Varanodon , rather than the much more massively built Dimetrodon...