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Semele perlamellosa

Geological Range

Late Miocene to Middle Pleistocene; Extinct.

Paleogeographic Distribution

Panama to southern Florida.

Remarks

Original Description (from Heilprin, 1886, p. 92):

"Shell thin, transversely elongated, oval, about equilateral; beaks central, acute, not prominent; right valve with a vertically incised, lamellar, cardinal-tooth, which is followed by the very oblique, and broadly opening cartilage sulcus; dental fissure in left valve narrow, apparently duplicated; lateral teeth subcentral; surface covered with numerous, regularly placed, elevated lamellae of growth, which are gently angulated on the posterior slope.

Length, 2.8 inches; height, two inches.

A single specimen from the banks below Fort Thompson."

Stratigraphic Occurrences

Middle Pleistocene
Bermont Formation (S. FL)
Early Pleistocene
Caloosahatchee Formation (S. FL)
Late Pliocene
Tamiami Formation (S. FL)
Tamiami Formation (Ochopee Limestone) (S. FL)
Tamiami Formation (Pinecrest Beds) (S. FL)
Late Miocene
Gatun Formation (Middle) (Panama)
<i>Semele perlamellosa</i> from the Early Pleistocene Caloosahatchee Fm. of Hendry County, Florida (UF 146493).
Semele perlamellosa from the Early Pleistocene Caloosahatchee Fm. of Hendry County, Florida (UF 146493).
Specimen of <i>Semele perlamellosa</i> figured by Heilprin (1886, pl. 11, fig. 23); 2.8 in. in length.
Specimen of Semele perlamellosa figured by Heilprin (1886, pl. 11, fig. 23); 2.8 in. in length.
Middle Pleistocene Map
Middle Pleistocene Map
Early Pleistocene Map
Early Pleistocene Map
Late Pliocene Map
Late Pliocene Map
Late Miocene Map
Late Miocene Map