Subclass Ambuloasteroidea Blake and Hagdorn 2003 (sea star)
Full reference: D. B. Blake and H. Hagdorn. 2003. The Asteroidea (Echinodermata) of the Muschelkalk (Middle Triassic of Germany). Paläontologische Zeitschrift 77(1):23-58
Parent taxon: Asteroidea according to D. B. Blake 2018
See also Blake and Hagdorn 2003 and Blake et al. 2017
Sister taxa: Arthrasteridae, Cryptozonia, Euasteroidea, Euaxosida, Hadrosida, Hemizonida, Hunsrueckaster, Kermasida, Lepidasterella, Neopalaeasteridae, Petrasteridae, Phanerozoma, Phanerozonida, Platyasterida, Pleuraster, Proactis, Protarthraster, Pustulosida, Schuchertiidae, Silicaster, Spinulosacea, Trichotaster, Yarravaster
Subtaxa: Calliasterellidae Compsasteridae Neoasteroidea
Ecology: slow-moving low-level epifaunal carnivore