†Gagaria americana Clark and Twitchell 1915 (sea urchin)
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Alternative combination: Pseudodiadema americanum
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 Gagaria according to W. B. Clark and M. W. Twitchell 1915
See also Cooke 1941
Sister taxa: Gagaria chickasawhay, Gagaria crenularis, Gagaria mossomi, Gagaria venustula, Thylechinus (Gagaria) salis
Type specimen: Its type locality is The Rocks, which is in a Priabonian foreshore claystone in the Yazoo Formation of Alabama
Ecology: slow-moving low-level epifaunal grazer
Distribution: found only at The Rocks
Specimen images are retrieved through the ePANDDA API.
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