NMITA: Neogene Marine Biota of Tropical America 

Radimella confragosa (Edwards, 1944)

SEM Photograph:. (Borne and Cronin, ms, pl. 1, fig. 1) Scale is 0.06 mm. (Locality CJ89-20-11: Río Banano, Limón Province, Costa Rica; Río Banano Formation). Left valve, female.

Morphologic Description: Characterized by coarse reticulation and pronounced anterior cardinal angle, slightly bent dorsal margin. The dorsal ridge system pronounced and sloping rather steeply forward (Bold, 1988).

Holotype: USNM 559423 (Pit on west side of US Highway 74, north side of Lumber River near Lumberton, North Carolina, Duplin Marl, Pliocene).

Distribution:

  • Upper Miocene to Pleistocene (?Recent): U.S. Atlantic and Gulf Coasts, Mexico, Costa Rica, Columbia, Venezuela, Trinidad, Greater Antilles (Bold, 1988).
  • Pliocene to Recent previously occurrences have been reported from Cuba and the seas off Jamaica (Fithian, 1980). In Belize this species is restricted to the carbonate platforms (Teeter, 1975).

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    To view genus description return to Genus Page.

    Last updated October 10, 1997 - jpd