Pecten (Chlamys) jeffersonius palmyrensis Mansfield, 1936
MANSFIELD, W. C. 1936. Stratigraphic significance of Miocene, Pliocene and Pleistocene Pectinidae in the Southeastern United States. Journal of Paleontology, 10 (3): 168-192. [p. 187, pl. 23, fig. 3]
«PECTEN (CHLAMYS) JEFFERSONIUS PALMYRENSIS Mansfield,
n. subsp. Plate 23, figure 3 Shell large, ovate, equilateral, moderately inflated. Ribs four in number, high, very wide, nearlv flat on the upper surface, and undercut over the umbonal area but rounded distally. Whole surface radially sculptured with many rounded, scabrous, coarse threads.
Dimensions of holotype: Right valve (U. S. Nat. Mus. 373075), length 155 mm.; height, 146 mm.; convexity 30 mm. Type locality: Station 1/1218, lowest Miocene bed at Palmyra Bluff, right bank of Roanoke River, Halifax County, North Carolina. W. C. Mansfield and Willis P. Popenoe, collectors. Horizon: Upper Miocene, Chama-bearing bed, lower part of zone 2 of the Yorktown formation. Pecten jeffersonius palmyrensis differs from P. jeffersonius septenarius Say in having fewer ribs.» WENDELL CLAY MANSFIELD, 1936
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W. C. Mansfield, 1936, plate 23.
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