†Oolopygus (sea urchin)
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Echinoidea - Irregularia - Nucleolitidae
Alternative spelling: Catopygus (Oolopygus)
Parent taxon: Nucleolitidae according to P. M. Kier 1966
See also Kier 1962, Sanchez-Roig 1953 and Sepkoski 2002
Sister taxa: Clypeopygus, Hemicara, Heteronucleus, Hypopygurus, Nucleolites, Phyllobrissus, Plagiochasma, Pseudonucleus, Pseudosorella, Pygaulus, Pygopistes, Pygorhynchus
Subtaxa: Catopygus (Oolopygus) gonzalezi Catopygus (Oolopygus) williamsi Oolopygus gracilis
Ecology: epifaunal grazer-deposit feeder
Distribution:
• Cretaceous of Belgium (8 collections), France (2), the Netherlands (6), Spain (1), United States (3: New Jersey)
Total: 20 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
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