Harduinia d'Archiac and Haime 1853 (sea urchin)

Echinoidea - Cassiduloida

Alternative spellings: Hardouinia, Procassidulus (Hardouinia)

Synonym: Gonioclypeus Emmons 1858

Full reference: E. d'Archiac and J. Haime. 1853. Description des animaux fossiles du groupe nummulitique de l'Inde, précédée d'un résumé géologique et d'une monographie des nummulites. Gide & J. Baudry, Paris 1-373

Parent taxon: Cassiduloida according to A. B. Smith 2001

See also Cooke 1953, Kier 1966, Lambert and Thiéry 1921 and Sepkoski 2002

Sister taxa: Astropygaulus, Bothryopneutes, Calilampus, Cassidulina, Centropygus, Clarkiella, Claviaster, Clypeanthus, Conoclypeus, Eogaleropygus, Gitolampas, Laticlypus, Lovenilampas, Neolampadina, Ovulechinus, Platypygus, Procassidulus, Pygurostoma, Stegopygus

Subtaxa: Hardouinia aequorea Hardouinia bassleri Hardouinia florealis Hardouinia kellumi Hardouinia mcglameryae Hardouinia micrococcus Hardouinia mortonis Hardouinia stantoni Hardouinia taylori

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Ecology: slow-moving semi-infaunal detritivore

Distribution:

• Paleocene of United States (1: New Jersey collection)

• Cretaceous of Canada (1: Alberta), North Atlantic (1), United States (84: Alabama, Colorado, Delaware, Georgia, Mississippi, North Carolina, South Carolina, Texas)

Total: 87 collections including 98 occurrences

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Specimen images are retrieved through the ePANDDA API.


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