Suborder Brissidina Stockley et al. 2005 (heart urchin)

Echinoidea - Spatangoida

Full reference: B. Stockley, A. B. Smith, T. Littlewood, H. A. Lessios, and J. A. MacKenzie-Dodds. 2005. Phylogenetic relationships of spatangoid sea urchins (Echinoidea), taxon sampling density and congruence between morphological and molecular estimates. Zoologica Scripta 34:447-468

Parent taxon: Spatangoida according to A. Kroh and A. B. Smith 2010

Sister taxa: Allotoxaster, Amoraster, Apoxypetalum, Archaeopneustes, Asterostomatina, Barnumia, Brissoides, Cagaster, Cestobrissus, Cottreaucorys, Echinocoridae, Enichaster, Gonzalezaster, Hemiasteridae, Hemiasterina, Homoeopetalus, Hypselaster, Kertaster, Leymeriaster, Micrasterina, Mundaster, Murraypneustes, Neoproraster, Niponaster, Nudobrissus, Orthaster, Palaeostomidae, Paleopneustina, Paraheteraster, Peraspatangus, Peroniaster, Pictaviechinus, Pliotoxaster, Pseudogibbaster, Pseudolinthia, Pseudowashitaster, Pusillaster, Royasendia, Somalechinus, Somaliasteridae, Spatagobrissus, Tessieria, Toxasteridae, Toxasterina, Wuarnia

Subtaxa: Antillasteridae Asterostomatidae Brissidae Palaeotropidae Spatangidea

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Ecology: slow-moving shallow infaunal deposit feeder-detritivore

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