Pecten (Nodopecten) [sic] vaccamavensis Olsson, 1914
OLSSON, A. A. 1914. New and interesting Neocene fossils from the Atlantic Coastal Plain. Bulletins of American Paleontology, 5 (24): 39-72, pls. 8-12. [p. 49, pl. 8, fig. 1]
«Pecten (Nodopecten) vaccamavensis, n. sp. Plate 1, Fig. 1
Shell rather large; valves of moderate but equal convexity; left valve with about seven narrow, elevated ribs which are slightly nodose at more or less equal radial distances from the beak; interspaces very wide and with about 4 or 5 longitudinal lines which are made slightly setose by the equi-distant, elevated, concentric lines; anterior and posterior marginal slopes, abrupt; ears flat, with narrow riblets, slightly imbricated by the concentric lines which are here rather closely crowded. Left valve (not well preserved in type specimen) with seven or eight very wide ribs, separated by narrow and deep interspaces.
Length 70, width 68, thickness 18 mm. The specimen above described is from the Cornell University collection and labelled as Miocene of Lake Waccamaw, N. C. When more is known concerning its exact stratigraphic position the species may prove to be Pliocene, as is also the case with Modiolus gigantoides. The specimen is not well preserved, being a large cast, with a portion of the shell of the left valve still remaining. Three of the ribs are much more prominent than the other four, but apparently all were introduced at about the same time. These three ribs, together with the rather angular submargins, give the shell a quinquecostate appearance. Miocene (?); Lake Waccamaw, N.C.» AXEL ADOLPH OLSSON, 1914
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A. A. Olsson, 1914, plate 8.
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