Richard A Kissel

Richard A Kissel
Yale University | YU · Peabody Museum of Natural History

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The new species of single tooth-rowed captorhinid reptile Captorhinus magnus n. sp. from the Lower Permian fissure fillings at Richards Spur, Oklahoma differs from Captorhinus aguti in body size and dental and femoral morphology. Linear measurements of fully mature C. magnus elements range in size from 1.5 to 2.3 times as great as those of C. aguti...
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A new genus and species of the herbivorous Diadectidae, Orobates pabsti, is described on the basis of several specimens, including two complete, articulated skeletons, a skull with partial postcranium, a partial skull, and a dentigerous jaw fragment. All were collected from the Lower Permian (Wolfcampian) Tambach Formation, lowermost formational un...
Article
A recently discovered tetrapod-bearing locality (OMNH V1005) in the Upper Pennsylvanian Ada Formation of Oklahoma has produced the remains of six taxa: the pelycosaurian-grade synapsid Ophiacodon cf. mirus, an indeterminate sphenacodontian pelycosaur, the temnospondyl Eryops? sp., the rare diadectid Diasparactus zenos, and two unidentified taxa kno...
Article
A recently discovered tetrapod-bearing locality (OMNH V1005) in the Upper Pennsylvanian Ada Formation of Oklahoma has produced the remains of six taxa: the pelycosaurian-grade synapsid Ophiacodon cf. mirus, an indeterminate sphenacodontian pelycosaur, the temnospondyl Eryops ? sp., the rare diadectid Diasparactus zenos, and two unidentified taxa kn...
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Stream channel infills near Garnett, Kansas preserve the most abundant and diverse assemblage of amniotes known from the Carboniferous. In addition to the diapsid Petrolacosaurus kansensis and the synapsids Haptodus garnettensis, Xyrospondylus ecordi, and Ianthasaurus hardestiorum, at least three additional synapsid taxa can be recognized, includin...