Lyropecten cerrosensis (Gabb, 1866)
GABB, W. M. 1866-1869. Paleontology of California. Vol II. Cretaceous and Tertiary fossils. Geological Survey of California, 299 p., pls. 1-36. [p. 32, pl. 9, fig. 55, 55a]
1866 Pecten cerrosensis Gabb, 1866
1906 Pecten (Lyropecten) ashleyi Arnold, 1906
1906 Pecten (Lyropecten) ashleyi Arnold, 1906
W. M. Gabb, 1866, plate 9.
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«SHELL equivalve, subcircular, broader than long, convex; beaks small; sides sloping concavely above, rounded below; ears small, subequal, roughened and irregular, sinus very small. Surface marked by eighteen or twenty flat ribs, with flat or slightly concave interspaces; margins undulated, the ends of the ribs being deeply emarginated, and the interspaces being prolonged into tongue-like processes.
Figure, one-half natural size (linear). Locality: Cerros Island, off the coast of Lower California: probably Miocene. Collected by Dr. J. A. Veatch.» WILLIAM MORE GABB, 1869
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