Lepidopecten Woodring, 1982
WOODRING, W. P. 1982. Geology and paleontology of Canal Zone and adjoining parts of Panama. United States Geological Survey Professional Paper, 306-F: 1-759, pls. 83-124. [p. 592]
«Genus Lepidopecten Woodring, n. gen.
Type: Pecten (Aequipecten) scissuratus Dall, Gatun formation, Canal Zone, middle Miocene.
Small to medium size, thin-shelled, especially left valve; height and length subequal; right valve more convex than left, auricles subequaI. Sculpture discrepant on right and left valves. Both valves sculptured with inverted U-shaped ribs of about same width as interribs and concentric sculpture consisting of fine lamellae in interribs and exceptionally on parts of ribs, or replaced on ribs by weak, irregularly developed nodes. On left valve, ribs flanked on both sides by a very thin radial lamella. Narrow space between rib and lamella containing microscopic vaulted scales pointed addorsally, generally partly or completely effaced. Flanks very narrow, steeply sloping. Byssal notch very narrow, ctenolium very short, or notch and ctenolium not discernible.
Lepidopecten is distinguished by the discrepant sculpture, the microscopic sculpture of the left valve, and the greater convexity of the right valve. It is represented by two Miocene species: the type species and the earlier L. proterus, both from the Canal Zone.» WENDELL PHILLIPS WOODRING, 1982
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Lepidopecten scissuratus (Dall); W. P. Woodring, 1982, Geology and paleontology of Canal Zone and adjoining parts of Panama, plate 106, figures 1, 3-5.
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