ammonites
†family Hudsonasteridae Schuchert 1914 (sea star)

Asteroidea

Synonym: Protopalaeasteridae Kesling 1962

Full reference: C. Schuchert. 1914. Fossilium Catalogus. 1: Animalia, pars 3, Stelleroidea palaeozoica. W. Junk, Berlin 1-53

Parent taxon: Asteroidea according to L. G. Herringshaw et al. 2007

Sister taxa: Ambuloasteroidea, Arthrasteridae, Cryptozonia, Embolasteridae, Eriaster, Euasteroidea, Fandasteridae, Hemizonida, Lepidasteridae, Monasteridae, Neoasteroidea, Neopalaeasteridae, Palasterinidae, Petraster, Phanerozonida, Platyasterida, Pleiadeaster, Pleuraster, Promopalaeaster, Promopalaeasteridae, Protasteracanthion, Pustulosida, Spinulosacea, Trichotaster, Uranasteridae, Zorocallida

Subtaxa: Coccasterinae, Doliaster, Girvanaster, Hudsonaster, Hudsonasterinae, Siluraster, Silurasterinae

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Ecology: slow-moving low-level epifaunal detritivore