Leptopecten atlanticola (Anderson, 1929)
ANDERSON, F. M. 1929. Marine Miocene and related deposits of North Colombia. Proceedings of the California Academy of Sciences [4th Series], 18 (4): 73-213 [p. 156, pl. 19, figs. 3, 7]
1929 Pecten atlanticola Anderson, 1929
F. M. Anderson, 1929, plate 19.
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«Shell small, nearly circular, or slightly oblique, appressed, left valve a little more convex than the right; ears long, subequal, the anterior right ear bearing six radial riblets, the others mostly smooth; radial ribs on the body of the shell 13 in number, rounded, with interspaces of nearly the same width as the ribs; ribs and interspaces crossed by distinct lines of growth; altitude of holotype 36 mm., length 40 mm., thickness 10.5 mm.
Holotype: No. 4661; paratype: No. 4661-A, Mus. Calif. Acad. Sci., from Loc. 267, C. A. S., horizon P, north slope of Tubera mountain, Colombia; Miocene. There is a strong resemblance, and evident relationship between this species and P. praevalidus Jordan & Hertlein [Proc. Calif. Acad. Sci., vol. 15, 1926, p. 435, pl. 29, figs. 2, 3], from the Pliocene of Turtle Bay, Lower California. Several good specimens of this species were obtained at Loc. 267, C. A. S., horizon P, north slope of Tubera mountain. As far as known this species belongs near the middle of the Tubera group of the Colombian Miocene, therefore near the Gatun horizon.» FRANK MARION ANDERSON, 1929
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