†Micropsidia Pomel 1883 (sea urchin)
Parent taxon: Temnopleuroida according to J. W. M. Jagt 2000
Sister taxa: Ambipleurus, Arbacina, Asaphechinus, Cryptechinus, Echinopsis, Gagaria, Hebertia, Medocechinus, Mirechinus, Pentechinus, Prionechinus, Tatechinus
Subtaxa: none
Ecology: slow-moving low-level epifaunal grazer