Chesapecten burnetti (Tucker-Rowland, 1934)
TUCKER-ROWLAND, H. I. 1934. Some Atlantic Coast Tertiary Pectinidae. The American Midland Naturalist, 15: 612-621, pls. 25-27 [Under H. I. Tucker]. [p. 616, pl. 25, fig. 2]
1934 Chlamys (Aequipecten) burnetti Tucker-Rowland, 1934
H. I. Tucker-Rowland, 1934,
plate 25. |
«Description.— Shell equilateral; radial sculpture well developed; the valves somewhat flat, the left the more convex. The right valve has sixteen rounded ribs; the left, fifteen somewhat sharper ribs. A sulcus appears on the summits of the ribs 10 to 15 mm. from the ventral margin. A single intercostal appears on the right valve 3 or 4 mm. before the groove on the primary ribs. On the left valve there is one, rarely two, smaller intercostals. Interspaces on the left valve much the wider. Concentric lamellae stronger on the left valve, Submargins plain. Auricles of left valve lamellated; 4 to 5 radial threads; right anterior auricle has 3 radial threads, posterior, 5. Very wide byssal fascicle. Ctenolium present. Interior ribbed. Dimensions.— height 33, width 27 mm. This species is named in honor of Dr. Burnett Smith.
Remarks.— This species differs from C. perplanus Morton in having fewer ribs, smaller auricles, less marked scaly sculpture, and in the absence of a provinculum. This species has 15 to 16 ribs while perplanus has 23 to 25. Occurrence.— Tampa Miocene. Six Mile Creek (type) and Black Water Creek, Florida. Holotype.— A right valve. Collection H. I. Tucker.» HELEN IONE TUCKER-ROWLAND, 1934
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«In deeper open sand areas of the Hillsborough Lagoon, suspension-feeding turritellid gastropods formed immense beds that carpeted the bottom for kilometers. These beds were made up almost entirely of three species; Calaertitella tampae (Heilprin, 1886) (namesake of the community, Plate 15, H), Eichrnaldiella atacta (Dall,1915) (Plate 15, D), and Eichwaldiella medioconstricta (DaII,1915). Othea rarer turritellids also occurred within these beds, including Apicula megabasis (Dall,1892), Torcula litharia (Dall,1915), and T. systoliata (Dall, 1915). Feeding on the turritellids were carnivorous drilling gastropods such as the muricine muricid Viator sexangula (Dall, 1915), the ocenebrine muricid Ecphorosycon tampaensis (Dall, 1892) (Plate 15, E), the naticid Amauropsis solidula (Dall, 1892), and the rapanine thaidid Tritonopsis biconica (Dall, 1915) (Plate 15, A). Interspersed between the turritellids, on open sand patches, were small beds of several species of scallops, including Dimarzipecten crocus (Cooke,1919), D. marionensis (Mansfield,1937), and Chesapecten burnetti (Tucker, 1934).»
PETUCH, E. J. 2004. Cenozoic Seas. The view from Eastern North America. CRC Press, 308 p., pls. 1-98, figs. 1-34. Boca Raton, Florida. [p. 75, 77]
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«Chlamys burnetti is closely related to Chlamys acanikos Gardner, a Chipola species, but differs from that species in having wider and more rounded ribs and more and stronger threads in the interradial spaces. The imbrications on the threads of the new species are also more closely spaced than on Chlamys acanikos. Chlamys ("Aequipecten") canalis Brown and Pilsbry from the lower Miocene,Emperador limestone, Panama Canal zone, has finer striations on the ribs than Chlamys burnetti.»
MANSFIELD, W. C. 1937. Mollusks of the Tampa and Suwannee Limestones of Florida. Florida Department of Conservation, State Geological Survey, Geological Bulletin, 15: 1-334, pls. 1-21. [p. 212]
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Chlamys (Lyropecten) burnetti Tucker; W. C. Mansfield, 1937, Mollusks of the Tampa and Suwannee Limestones of Florida, plate 15, figures 1, 3.
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