ammonites
banner
Gateway to the Paleobiology Database
Arcaechinus Kier 1957 (heart urchin)

Echinoidea - Spatangoida - Brissidae

PaleoDB taxon number: 168747

Alternative spelling: Archaechinus

Full reference: P. M. Kier. 1957. Tertiary Echinoidea from British Somaliland. Journal of Paleontology 31(5):839-902

Parent taxon: Brissidae according to A. G. Fischer 1966

Sister taxa: Aguayoaster, Brissopatagus, Brissopsidae, Brissopsis, Brissus, Cionobrissus, Cyclaster, Diplodetus, Eupatagus, Fernandezaster, Fourtaunia, Gillechinus, Gualtieria, Herreraster, Hikelaster, Hysteraster, Lajanaster, Macropneustes, Mariania, Mauritanaster, Megapneustes, Meoma, Metalia, Migliorinia, Pharaonaster, Plagiobrissus, Plesiaster, Plesiopatagus, Radiobrissus, Rhynobrissus, Rojasia, Stomaporus, Taimanawa, Trachypatagus, Unifascia

Subtaxa: none

Ecology: slow-moving shallow infaunal deposit feeder-detritivore