Euvola remulus (Weisbord, 1964)
WEISBORD, N. E. 1964. Late Cenozoic Pelecypods from Northern Venezuela. Bulletins of American Paleontology, 45 (204): 1-564, pls. 1-59. [p. 127, pl. 12, figs. 9-10]
1964 Pecten (Pecten?) remulus Weisbord, 1964
N. E. Weisbord, 1964, plate 12.
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«The following description is based on one immature left valve.
Shell small, paper-thin, subtranslucent, subsquarish in outline, nearly equilateral, flat except for slightly elevated sides, the dorsal margins diverging at an angle of about 99 degrees, the ventral margin shallowly rounded. Hinge line long and straight. Beak small, rather full, about level with the hinge line, the umbo appressed. Auricles large, a little unequal, depressed slightly below the submargins but merging smoothly with them. Anterior ear a little larger than the posterior, slightly embayed at the base, the margin hardly convex; posterior ear triangular, the margin seemingly subtruncate. Both ears are gently concave and smooth except for fine inconspicuous concentric lineations. Lower half of disk sculptured by 19 nearly obsolete low broad radial ribs which are reflected as mirror counterparts in the interior; visible concentric markings are wanting, and the submagins are smooth. Within the valve, the ligamental groove is straight and exceedingly narrow. The chondrophore is shallow, and the base of the hinge plate below it is arcuate. The body cavity, as represented by a whitish calcareous veneer on the surface, is elongate oval. Dimensions.— Holotype (S345a), left valve, height 8 mm., width 8.3 mm. Type locality.— Playa Grande formation (Maiquetia member) at W-23, north flank of Punta Gorda anticline; one left valve, the holotype. Comparisons.— The left valve of the new species resembles, in miniature, Pecten (Pecten) refugioensis Hertlein (1925, California Acad. Sci., Proc, ser. 4, vol. 14, No. 1, p. 7, pl. 5, fig. 9) from the upper Miocene or Pliocene at Rancho Refugio, north of San Jose del Cabo, Baja California, Mexico. The principal difference is that the Mexican shell, other than its much larger size, has a semicircular basal margin.» NORMAN EDWARD WEISBORD, 1964
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