Family Palaeostomatidae Lovèn 1868 (heart urchin)
Echinoidea - Spatangoida - Palaeostomatidae
Alternative spelling: Palaeostomata
Full reference: S. Lovèn. 1868. Om Leskia mirabilis Gray. Öfversigt af Kongelige Vetenskaps-Akademiens, Förhandlingar 24:431-440
Parent taxon: Hemiasterina according to A. G. Fischer 1966
Sister taxa: none
Subtaxa: Homoeaster Lambertiaster Leiostomaster Ornithaster Palaeostoma
Type: Palaeostoma
Ecology: slow-moving shallow infaunal deposit feeder-detritivore
Distribution: