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Astarte concentrica

Geological Range

Miocene to Early Pleistocene; extinct.

Paleogeographic Distribution

Florida to Virginia.

Remarks

Original description (from Conrad, 1834):

"Shell subtriangular, compressed, with numerous concentric rounded costae, crowded on the basal margin; umbones slightly flattened; apex acute, central; lunule large, concave, lanceolate; posterior margin concave; submargin acutely angular, straight; extremity obtusely rounded; cardinal teeth strongly striated; margin crenulated. Length, one inch and one-eighth; height, seven-eighths of an inch.

Locality. Yorktown, Va."

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Stratigraphic Occurrences

Early Pleistocene
Waccamaw Formation (SC, NC)
Waccamaw Formation (Upper) (NC)
Late Pliocene
Raysor Formation (GA, SC)
Tamiami Formation (Pinecrest Beds) (S. FL)
Yorktown Formation (NC, VA)
Yorktown Formation (Moore House Member) (VA)
Middle Miocene
Pungo River Formation (NC)
<i>Astarte concentrica</i> from the Early Pleistocene James City Fm. of Beaufort County, North Carolina (PRI 69878).
Astarte concentrica from the Early Pleistocene James City Fm. of Beaufort County, North Carolina (PRI 69878).
<i>Astarte concentrica</i> from the Early Pleistocene James City Fm. of Beaufort County, North Carolina (PRI 69878).
Astarte concentrica from the Early Pleistocene James City Fm. of Beaufort County, North Carolina (PRI 69878).
Early Pleistocene Map
Early Pleistocene Map
Late Pliocene Map
Late Pliocene Map
Middle Miocene Map
Middle Miocene Map