Morphological diagnoses of higher taxa in Ophiuroidea (Echinodermata) in support of a new classification Author Stöhr, Sabine Author Hugall, Andrew F. Author Thuy, Ben Author Martynov, Alexander text European Journal of Taxonomy 2018 2018-03-21 416 1 35 journal article 22339 10.5852/ejt.2018.416 2eebb037-4ab1-433c-a9f6-8fe319e9fda9 3806109 AD094812-5768-43E9-BCC2-9226E69F0820 Order Amphilepidida O’Hara et al. , 2017 Diagnosis Ventral end of dental plate laterally tapered. Infradental papillae. Abradial genital plate with concave adradio-distal tip. Dorsal and ventral lobes of arm spine articulations parallel (except in Ophiotrichidae ).