Echinoidea - Cassiduloida - Neolampadidae

Alternative combination: Cassidulus (Rhynchopygus) holmsei

Full reference: W. B. Clark and M. W. Twitchell. 1915. The Mesozoic and Cenozoic Echinodermata of the United States. United States Geological Survey Bulletin 54:1-341

Belongs to Eurhodia according to P. M. Kier 1980

See also Clark and Twitchell 1915 and Cooke 1942

Sister taxa: Eurhodia baumi, Eurhodia elbana, Eurhodia morrisi, Eurhodia patelliformis, Eurhodia rugosa

Type specimen: Its type locality is Santee River (Santee LS, S. Carolina), which is in a Bartonian marine wackestone/grainstone in the Santee Limestone Formation of South Carolina.

Distribution: found only at Santee River (Santee LS, S. Carolina)

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Specimen images are retrieved through the ePANDDA API.