†subfamily Stigmatopyginae Smith and Wright 2000 (sand dollar)
Echinoidea - Clypeasteroida - Faujasiidae
Full reference: A. B. Smith and C. W. Wright. 2000. British Cretaceous echinoids. Part 6, Neognathostomata (Cassiduloids). Monographs of the Palaeontographical Society 154(615):391-429
Parent taxon: Faujasiidae according to A. Kroh and A. B. Smith 2010
See also Smith and Wright 2000
Sister taxa: Australanthus, Domechinus, Eurypetalum, Faujasia, Fauraster, Gongrochanus, Lefortia, Petalobrissus, Pygidiolampas, Zuffardia
Subtaxa: none
Ecology: slow-moving semi-infaunal detritivore
Distribution: there are no occurrences of Stigmatopyginae in the database