Ophiurida Dataset Morphological diagnoses of higher taxa in Ophiuroidea (Echinodermata) in support of a new classification Rank ORDER Classification kingdom Animalia phylum Echinodermata class Ophiuroidea order Ophiurida Name Homonyms Ophiurida Muller & Troschel 1840 Ophiurida Muller & Troschel 1840 Ophiurida