†Pseudodiadema emersoni Clark 1893 (sea urchin)
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Echinoidea - Calycina - Diplopodiidae
Belongs to Pseudodiadema according to W. B. Clark and M. W. Twitchell 1915
Sister taxa: Pseudodiadema rotulare, Pseudodiadema seguini, Pseudodiadema silbinense, Pseudodiadema texanum
Ecology: slow-moving low-level epifaunal omnivore
Distribution: found only at Taylorsville [Mormon Sandstone] (Jurassic of California)
Specimen images are retrieved through the ePANDDA API.
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