†Rhynchopygus arumaensis Kier 1972 (sea urchin)
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Echinoidea - Cassiduloida - Cassidulidae
Belongs to Rhynchopygus according to D. Néraudeau et al. 1995
Sister taxa: Cassidulus (Rhynchopygus) californicus, Cassidulus (Rhynchopygus) depressus, Cassidulus (Rhynchopygus) evergladensis, Cassidulus (Rhynchopygus) mexicanus, Cassidulus (Rhynchopygus) ynezensis, Rhynchopygus lapiscancri, Rhynchopygus marmini, Rhynchopygus peruvianus
Ecology: slow-moving semi-infaunal detritivore
Distribution: found only at VD88.183, section 1, Riyadh quadrangle (Cretaceous of Saudi Arabia)
Specimen images are retrieved through the ePANDDA API.
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