. A diapsid reptile from the Pennsylvanian of Kansas. Reptiles, Fossil -- Kansas; Paleontology -- Pennsylvanian; Paleontology -- Kansas. 1980 PENNSYLVANIAN DIAPSID REPTILE 41. Fig. 18.—Pctrolacosatirus kansensis Lane. Pelvic girdle, X (A) Lateral \iew of slightly crushed left pelvis, KUVP 9961. (B) Medial view of right iliac blade, uncrushed, KUVP 33606c. (C) Medial view of shghtly crushed left pelvis, KUVP 9951. cosaurus. In KUVP 33606 part of the left side of a mature pelvis, exposed in medial view, is closely associated with a series of posterior dorsal, sacral and anterior caudal vert
. A diapsid reptile from the Pennsylvanian of Kansas. Reptiles, Fossil -- Kansas; Paleontology -- Pennsylvanian; Paleontology -- Kansas. 1980 PENNSYLVANIAN DIAPSID REPTILE 41. Fig. 18.—Pctrolacosatirus kansensis Lane. Pelvic girdle, X (A) Lateral \iew of slightly crushed left pelvis, KUVP 9961. (B) Medial view of right iliac blade, uncrushed, KUVP 33606c. (C) Medial view of shghtly crushed left pelvis, KUVP 9951. cosaurus. In KUVP 33606 part of the left side of a mature pelvis, exposed in medial view, is closely associated with a series of posterior dorsal, sacral and anterior caudal vertebrae, on a small block which also con- tains other remains of Petrolacosaurus. In KUVP 9951c the complete pelvis, exposed in lateral and medial views, is closely associated with both hindlimbs and lies near a series of articulated presacral vertebrae and a scat- tered skull of the same genus. These pelves are unique in several features and can be readily distinguished from those of other Paleozoic reptiles. The pelvis mistakenly as- cribed by Lane and Peabody to Petrolaco- saurus probably pertains to Edaphosaurus sp. which has also been found in the Gamett quarry. In its general proportions and in the struc- ture of the component elements, the pelvic girdle (Fig. 18) resembles that of Araeoscelis more closely than the girdle of any other rep- tile, but also retains a number of primitive features seen in primitive captorhinomoriDhs. In contrast to the fectoral girdle, which in Petrolacosaurus is lightly built and is ossified as a unit in mature individuals, the pelvic girdle is massive and the sutures between the component elements are always easily dis- cernible in medial view. The acetabular cav- ity is primitive in its configuration, with the three raised comers of the cavity supported by prominent buttresses on each of the three. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appe
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Keywords: ., bookcentury1900, bookcollectionbi, booksubjectpaleontologykansas
