Asteroidea - Neoasteroidea

Full reference: D. B. Blake. 1987. A classification and phylogeny of post-Palaeozoic sea stars (Asteroidea: Echinodermata). Jounral of Natural History 21:481-528

Parent taxon: Neoasteroidea according to L. Villier et al. 2009

Sister taxa: Migmasteridae, Surculifera, Valvatacea, Valvatida

Subtaxa: Terminaster, Trichasteropsida

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Ecology: slow-moving low-level epifaunal carnivore