Ophiacanthida O’Hara et al., 2017

Stöhr, Sabine, Hugall, Andrew F., Thuy, Ben & Martynov, Alexander, 2018, Morphological diagnoses of higher taxa in Ophiuroidea (Echinodermata) in support of a new classification, European Journal of Taxonomy 416, pp. 1-35 : 12

publication ID	https://doi.org/ 10.5852/ejt.2018.416
publication LSID	lsid:zoobank.org:pub:AD094812-5768-43E9-BCC2-9226E69F0820
DOI	https://doi.org/10.5281/zenodo.3816323
persistent identifier	https://treatment.plazi.org/id/039E87E8-1F6B-3021-FDB3-FEC97A6FFE46
treatment provided by	Valdenar
scientific name	Ophiacanthida O’Hara et al., 2017
status

Treatment

Order Ophiacanthida O’Hara et al., 2017 View in CoL

Diagnosis

Radial shields often with distal portion exposed (or only proximal tip concealed). Arm spine articulations with bent dorsal and ventral lobes merged at their proximal tips, and generally with sigmoidal fold.