Camptonectes ellsworthensis (Stephenson, 1952)
STEPHENSON, L. W. 1952. Larger invertebrate fossils of the Woodbine formation (Cenomanian) of Texas. United States Geological Survey Professional Paper, 242: 1-211, pls. 8-58 [p. 80, pl. 19, figs. 5, 6]
1952 Pecten (Camptonectes) ellsworthensis Stephenson, 1952
L. W. Stephenson, 1952, plate 19.
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«In general form, size, and type of sculpture this species is very much like the species P. (C.) moodyi. It difters, however, in that the radial ornamentation is much finer and is developed more uniformly over the surface. Ribs pass from the main shell out over the ears with little diminution in strength, except on the right anterior ear, whose ribs are weaker than those on the body. None of the ears is completely preserved, but on the holotype the right anterior ear has lost a little more from its anterior end than the others. The left valve is considerably more inflated than the right. Although the ribbing is comparatively fine, it is markedly coarser than that on Pecten (Camptonectes) bellisculptus Conrad (1869b, p. 99). The antero- and posterodorsal margins of the main shell diverge from the beak at an angle of about 88°.
Dimensions of the holotype, the two valves of which are intact; Length 29 mm, height 32 mm, thickness about 11 mm. Types.— Holotype. U.S.N.M. 105239: 1 unfigured paratype. U.S.N.M. 105240: both from Ellsworth School, 4 miles sonthsouthwest of Denison, Grayson County.
Occurrence.— Grayson County: Locs. 155 (types). 158. ?161, 171; Fannin County: loc. 100; Lamar County: locs. 206, 229. Range.— Templeton member.» LLOYD WILLIAM STEPHENSON, 1952
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