Nucleopygus Agassiz 1840 (sea urchin)

Echinoidea - Cassiduloida - Cassidulidae

Full reference: L. Agassiz. 1840. Catalogus systematicus Ectyporum Echinodermatum fossilium Musei Neocomiensis, secundum ordinem zoologicum dispositus; adjectis synonymis recentioribus, nec non stratis et locis in quibus reperiuntur. Sequuntur characteres diagnostici generum novorum vel minus cognitorum. Petitpierre, Neuch√Ętel 1-20

Parent taxon: Cassidulidae according to A. B. Smith 1995

See also Kier 1966, Sepkoski 2002 and Smith 1991

Sister taxa: Cassidulus, Echanthus, Hypsopygaster, Ochetes, Rhyncholampas, Rhynchopygus, Stigmatopygus

Subtaxa: Nucleopygus (Jolyclypus) Nucleopygus magnus Nucleopygus similis Nucleopygus texanus

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Ecology: slow-moving semi-infaunal detritivore

Distribution:

• Cretaceous to Paleogene of the Netherlands (2 collections)

• Cretaceous of Belgium (6), Brazil (1), France (20), Jamaica (1), the Netherlands (6), Oman (1), Spain (3), United States (3: New Jersey, Texas)

Total: 43 collections including 57 occurrences

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Specimen images are retrieved through the ePANDDA API.


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