Echinoidea - Temnopleuroida

Parent taxon: Temnopleuroida according to R. A. Linder et al. 1988

Sister taxa: Ambipleurus, Arbacina, Asaphechinus, Cryptechinus, Echinopsis, Hebertia, Medocechinus, Micropsidia, Mirechinus, Pentechinus, Prionechinus, Tatechinus

Subtaxa: Gagaria crenularis, Gagaria venustula

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Type: Micropsis venustula

Ecology: slow-moving low-level epifaunal grazer