[organisms]
see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
Phylum Echinodermata Bruguière, 1789 - echinoderms
Class Asteroidea Blainville, 1830 - sea stars
Order Forcipulatida Perrier, 1884
Family Pedicellasteridae Perrier, 1884
Genus Hydrasterias Sladen, 1889