†family Megapneustidae Fourtau 1905 (heart urchin)
Echinoidea - Spatangoida - Megapneustidae
Full reference: R. Fourtau. 1905. Notes sur les Echinides fossiles de l’Egypte. Bulletin de l’Institut Egyptien, Série 4 5:121-140
Parent taxon: Spatangidea according to A. Kroh and A. B. Smith 2010
Sister taxa: Eupatangidae, Eurypataginae, Loveniidae, Macropneustidae, Maretiidae, Spatangidae
Subtaxa: none
Ecology: slow-moving shallow infaunal deposit feeder-detritivore
Distribution: there are no occurrences of Megapneustidae in the database