. A diapsid reptile from the Pennsylvanian of Kansas. Reptiles, Fossil -- Kansas; Paleontology -- Pennsylvanian; Paleontology -- Kansas. Fig. 5.—Pctrolacosaurus kanscnsis Lane. Immature skull and lower jaws, KUVP 8351, X 4. (A) Dor- sal view of palate exposed by loss of skull roof, oblique view of lower jaws. (B) Ventral view of palate and oblique view of lower jaws. For key to abbreviations, see Fig. 2. Maxilla.—As in primitive captorhino- morphs and "(," the maxilla is the longest hone of the skull roof. It extt-nds from the midpoint of the external naris past the midpo
. A diapsid reptile from the Pennsylvanian of Kansas. Reptiles, Fossil -- Kansas; Paleontology -- Pennsylvanian; Paleontology -- Kansas. Fig. 5.—Pctrolacosaurus kanscnsis Lane. Immature skull and lower jaws, KUVP 8351, X 4. (A) Dor- sal view of palate exposed by loss of skull roof, oblique view of lower jaws. (B) Ventral view of palate and oblique view of lower jaws. For key to abbreviations, see Fig. 2. Maxilla.—As in primitive captorhino- morphs and "(," the maxilla is the longest hone of the skull roof. It extt-nds from the midpoint of the external naris past the midpoint of the orbit, over .53 per ecnt of the skull length. It forms the posteroxentral bor- der of the external naris but is exeluded from the orbit by the lacrimal and the jngal (KUVP 9951, Fig. 6). Anteriorly, the max- illa is .suturally attached to the premaxilla o\er a large surface area, as indicated by the rugose area on the anterior medial surface of the maxilla in KU\P 33602 (Fig. 9). To- gether with the premaxilla, the maxilla forms not only the ventral border of the external nares but also a medially directed shelf for the nasal capsule. Posteriorly, the bone expands dorsally to. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Reisz, Robert. Lawrence : University of Kansas
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Keywords: ., bookcentury1900, bookcollectionbi, booksubjectpaleontologykansas
