. Carnegie Institution of Washington publication. . Fig. 244.—Neptunochelys tuberosa. Humerus forming the type. X^. Fig. 245.—Atlantochelys mortoni. Portion of humerus forming the type. Xij±. After Leidy. Atlantochelys mortoni Agassiz. Fig. 245. Atlantochelys mortoni, Agassiz, Proc. Acad. Nat. Sci. Phila. 1849, p. 169 (no description); in Leidv, Smithson. Contrib. Knowl., xiv, art. vi, 1865, p. 43.—Leidy, Ext. Vert. Fauna West. Tens., 1872, p. 342.—Wieland, Amer. Jour. Sci. (4), 1900, p. 419, tigs. 14-16.—Hay, Amer. Naturalist, xxxil, 1898, p. 930; Bibliog. and Cat. Foss. Vett. N. A., 1902, p.
. Carnegie Institution of Washington publication. . Fig. 244.—Neptunochelys tuberosa. Humerus forming the type. X^. Fig. 245.—Atlantochelys mortoni. Portion of humerus forming the type. Xij±. After Leidy. Atlantochelys mortoni Agassiz. Fig. 245. Atlantochelys mortoni, Agassiz, Proc. Acad. Nat. Sci. Phila. 1849, p. 169 (no description); in Leidv, Smithson. Contrib. Knowl., xiv, art. vi, 1865, p. 43.—Leidy, Ext. Vert. Fauna West. Tens., 1872, p. 342.—Wieland, Amer. Jour. Sci. (4), 1900, p. 419, tigs. 14-16.—Hay, Amer. Naturalist, xxxil, 1898, p. 930; Bibliog. and Cat. Foss. Vett. N. A., 1902, p. 440. Mosasaurus mitchelli, Leidy, Smithson. Contrib. Knowl., xiv, art. vi, 1865, 43, 117, plate viii, tigs. 3-5. Protostega neptunia, Cope, Fifth Ann. Report U. S. Geol. Surv. Terrs., 1871 (1872), p. 334; Proc. Amer. l'hilos. Soc, XII, 1872, p. 433; Vert. Cret. Form. West, 1875, p. 257. Like Neptunochelys tuberosa, this species is based on a humerus which was derived from the Upper Cretaceous formation. The exact locality and level were not reported, but we know that the fossil was found in one of the beds of Cretaceous greensand in Burlington County, New Jersey. ()t this humerus (fig. 245) there was secured only the proximal half or less. This fragment had a length of about 280 mm. The shaft was extremely slender, being /$ mm. wide and 60 mm. thick. The ulnar process rises above the head about 75 mm. The radial process is. 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 Carnegie Institution of Washington. Washington, Carnegie Institution of Washington
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