Kier, P. M. 1972. Upper Miocene Echinoids from the Yorktown Formation of Virginia and their environmental significance. Smithsonian Contributions to Paleobiology 13, 1-41. page(s): 16-18; fig. 6, pl. 7: figs 2-3, pl. 8: figs 1-2 [details]
Note Scientists‘ Cliffs, Kenwood Beach, Calvert...
From editor or global species database
Type locality Scientists‘ Cliffs, Kenwood Beach, Calvert County, Maryland, USA [details]Type material HT: USNM 174460 [details]
original descriptionKier, P. M. 1972. Upper Miocene Echinoids from the Yorktown Formation of Virginia and their environmental significance. Smithsonian Contributions to Paleobiology 13, 1-41. page(s): 16-18; fig. 6, pl. 7: figs 2-3, pl. 8: figs 1-2 [details]
Present Inaccurate Introduced: alien Containing type locality
From editor or global species database
Fossil range Middle Miocene [details] Stratigraphy Choptank Formation [details] Type locality Scientists‘ Cliffs, Kenwood Beach, Calvert County, Maryland, USA [details] Type material HT: USNM 174460 [details]