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Dimarzipecten crocus

Geological Range

Early Miocene; Extinct.

Paleogeographic Distribution

Southern Florida to northern Florida.

Remarks

Original Description (from Cooke, 1919, p. 135):

"The following is a description of this species:

Shell equivalve, inequilateral, moderately convex; about 22 round ribs, separated by slightly narrower interspaces; surface of the ribs with curved imbricating spines, convex towards the umbones, and with very faint radiating striae; interspaces with sculpture of fine, close-set, concentric striae; near the ventral margin a small thread appears in each interspace; submargins depressed, ornamented with small radial threads and fine concentric striae; ears moderately large, subequal, with radial, nodose riblets.

Alt., 39 mm.; lat., 36 mm.; diam., 14 mm.

Locality. Roadside, descent to Crocus Bay, Anguilla, station 6893, also 6894 and 6965, Vaughan.

Geologic horizon. Oligocene.

Type. U. S. Nat. Mus. No. 167079."

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Stratigraphic Occurrences

Early Miocene
Arcadia Formation (Tampa Member) (S. FL) (note: fm. extends into upper Oligocene)
Parachucla Formation (N. FL)
Penney Farms Formation (N. FL)
<i>Dimarzipecten crocus</i> from the Early Miocene Penney Farms Fm. of Marion County, Florida (UF 198959).
Dimarzipecten crocus from the Early Miocene Penney Farms Fm. of Marion County, Florida (UF 198959).
Specimen of <i>Dimarzipecten crocus</i> figured by Cooke (1919, pl. 9, fig. 2a and 2b).
Specimen of Dimarzipecten crocus figured by Cooke (1919, pl. 9, fig. 2a and 2b).
Early Miocene Map
Early Miocene Map<