Antillipecten anguillensis (Guppy, 1867)
GUPPY, R. J. L. 1867. On the Tertiary fossils of the West-Indies, with especial reference to the classification of the Kainozoic rocks of Trinidad. Scientific Association of Trinidad, Proceedings, 1 (3): 145-176 [reprinted 1921, Bulletins of American Paleontology, 35: 14-55] [p. 175]
1867 Pecten anguillensis Guppy, 1867
Pecten Anguillensis; R. J. L. Guppy, 1874, On the West Indian Tertiary fossils, plate 18, figure 24.
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«Shell fan-shaped, ornamented with radiate muricate striae, and about 10 or 11 prominent rounded ribs, which are crossed by concentric striae, the concave interstices broader than the ribs. Upper valve nearly flat, lower one gently concave.
Miocene, Anguilla. Allied to P. peedeensis Tuomey and Holmes, North America.» ROBERT JOHN LECHMERE GUPPY, 1867
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«Small. Right valve sculptured with 11 wide andwidely spaced ribs, of about same width as interribs, or little narrower. Ribs obscurely and irregularly noded (at least on ventral half), and weakly grooved near ventral margin. Byssal notch apparently shallow. Exterior of anterior auricle not preserved. Posterior auricle very short, apparently not ribbed. Left valve unknown.
Length 22.4 mm, height 26.6 mm, convexity about 7 mm (figured specimen). Type material: Lectotype, herewith designated, USNM 115532. Type locality: Anguilla, Anguilla formation. The single right valve of this Chlamys from the La Boca formation cannot be cleaned; in fact, it was badly damaged when cleaning was attempted. It has the basic right-valve features of C. anguillensis. Cooke thought that the articulated specimen from the Guppy collection he illustrated (pI. 10, figs. 1a, 1b) is the type; that is, Guppy's poorly illustrated specimen. It is now designated the lectotype (length 29.8 mm, height 33 mm). Its right-valve interrib spaces are narrower than those of the fossil from the La Boca. The articulated specimen from Antigua illustrated by Cooke (pI. 10, fig. 2) has much stronger secondary radial sculpture than has any Anguillan specimen. On another Antiguan specimen (USNM 154175), however, the secondary sculpture is not so strong. Though Mansfield's incomplete valve from the Tampa limestone has the right-valve ribbing of C. anguillensis, the length seems to be too great for the estimated height. Occurrence: La Boca formation (early Miocene), Gaillard Cut area, locality 119. Antigua formation (late Oligocene), Antigua. Anguilla formation (early Miocene), Anguilla. Tampa limestone (early Miocene), Florida (identification doubtful).» 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. 590]
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Chlamys anguillensis (Guppy); W. P. Woodring, 1982, Geology and paleontology of Canal Zone and adjoining parts of Panama, plate 94, figure 6.
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