Echinoidea - Euechinoidea - Pseudodiadematidae

Parent taxon: Pseudodiadematidae according to H. B. Fell and D. L. Pawson 1966

See also Sepkoski 2002

Sister taxa: Acrocidaris, Heterodiadema, Hypodiadema, Microdiadema, Polydiadema, Tetragramma, Tiaromma

Subtaxa: none

Ecology: epifaunal grazer-deposit feeder

Distribution: found only at De Cordova Bend Dam (Cretaceous of Texas)

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Specimen images are retrieved through the ePANDDA API.