Carolinapecten jamieae Petuch 2003
PETUCH, E. J. 2003. Cenozoic Seas. The view from Eastern North America. CRC Press, 308 p., pls. 1-98, figs. 1-34. Boca Raton, Florida. [p. 296, pl. 86, fig. C]
2004 Carolinapecten jamieae Petuch 2004
E. J. Petuch, 2003, plate 86.
|
«Description: shell of average size for genus, flattened, rounded in outline, slightly wider than long; auricles well-developed, proportionally large, rounded; upper (right) valve with 21-22 large, rounded ribs (round in profile);
single, small, threadlike rib present between pair of large ribs; intercostal areas heavily sculptured with large scalelike growth increments; lower (left) valve with 21-22 large, flattened ribs; intercostal areas heavily sculptured with strong, prominent scalelike growth increments as on upper valve; auricles sculptured with 8 small, evenly spaced radiating ribs; color pattern (when preserved, as on holotype) composed of intermittent large flammules on each rib, all aligned in broad, undulating, concentric bands. Type Material: Holotype; AMNH FI-S0682, length 94 mm, width 101 mm; Paratype; length 90 mm, in the research collection of the author, same locality as the holotype. Type Locality: The holotype was collected in the Holey Land Member equivalent ("Loxahatchee beds") of the lower Bermont Formation, in the Palm Beach Aggregates quarry, Loxahatchee, Palm Beach County, Florida. Stratigraphic Range: Confined to the Holey Land Member, and equivalent units, of the Bermont Formation, Okeechobee Group, Aftonian Pleistocene of the Everglades region, Florida. Etymology: Named for Ms, Jamie Smith, Department of Geology and Geography, Florida Atlantic University, who collected the holotype. Discussion: The new species was the last-living member of the prominent Caloosahatchian Province genus Carolinapecten. Of the known species of the genus, which range from the Messinian Miocene to the Aftonian Pleistocene, C. jamieae is most similar to C. solaroides (Heilprin, 1886) (Plate 76, A) from the Calabrian Pleistocene Caloosahatchee, Nashua, and Waccamaw Formations, but differs in being a much smaller, more rounded shell, in having more numerous ribs (21-22 on C. jamieae, 19-20 on C. solaroides), in being a more ornate, sculptured shell with strong intercostals scales and subsidiary riblets, and in having more rounded ribs (when viewed in profile).» EDWARD JAMES PETUCH, 2003
|