. Carnegie Institution of Washington publication. io6 FOSSIL TURTLES OF NORTH AMERICA. Taphrosphys sulcatus Leidy. Text-figs. 98-100. Platemys sulcatus, Leidy, Proc. Acad. Nat. Sci. Phila., vm, 1856, p. 303; Smithsoh. Contrib. Knowl., XIV, art. vi, 1865, pp. 109, 120, plate xix, fig. 4.—Maack, Pal;eontographica, xviii, 1869, p. 281. Taphrosphys sulcatus, Cope, Cook's Geol. New* Jersey, 1868 (1869), p. 735; Ext. Batrach., Reptilia, Aves N. A., 1870, pp. 159, 164, text-figs., 45, 45 his; Vert. Cret. Form. West, 1875, p. 264.—Hay, Bibliog. and Cat. Foss. Vert. N. A., 1902, p. 439. Prochonias sulc
. Carnegie Institution of Washington publication. io6 FOSSIL TURTLES OF NORTH AMERICA. Taphrosphys sulcatus Leidy. Text-figs. 98-100. Platemys sulcatus, Leidy, Proc. Acad. Nat. Sci. Phila., vm, 1856, p. 303; Smithsoh. Contrib. Knowl., XIV, art. vi, 1865, pp. 109, 120, plate xix, fig. 4.—Maack, Pal;eontographica, xviii, 1869, p. 281. Taphrosphys sulcatus, Cope, Cook's Geol. New* Jersey, 1868 (1869), p. 735; Ext. Batrach., Reptilia, Aves N. A., 1870, pp. 159, 164, text-figs., 45, 45 his; Vert. Cret. Form. West, 1875, p. 264.—Hay, Bibliog. and Cat. Foss. Vert. N. A., 1902, p. 439. Prochonias sulcatus, Cope, Amer. Naturalist, in, 1869, pp. 89, 90; Ext. Batrach., etc., p. 165, line 8, plate xi, fig. 2. As has occurred too often in the history ot paleontology, the present species was based on very meager materials. These consisted of 3 peripheral bones, regarded as the fifth, sixth, and seventh, and a xiphiplastral. Only the peripherals were figured. These were large, measuring altogether 8 inches along the free border. They came from the Cretaceous greensand at Tinton Falls, Monmouth County, New Jersey, and are preserved in the geological collection of Rutgers College, New Brunswick, New Jersey. Leidy's description of these bones is very brief. Each bone has two faces, an upper and a lower, the lower broad and flat, the upper inclining toward it at an angle of nearly 45°, the two meeting along an acute margin. The fifth is 54 mm. long on. 99. Figs. 98 AND 99.—Taphrosphys sulcatus. No. 1468 A. H. 98. Section of seventh peripheral of type. Xi. 99. Rear of carapace. X\. the tree border; the sixth, 60 mm.; the seventh, 76 mm. The sixth rises from the free border to the costal border, 69 mm.; the seventh, 70 mm. The anterior end of the seventh is much thick- ened and has afforded an articulation with the inguinal buttress. In front of this articulation the bone is somewhat excavated by the sternal chamber. The hinder end of this peripheral is thin, not exceeding 1
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