an Entity references as follows:
Ophiacanthida is an order of echinoderms belonging to the class Ophiuroidea. Families: * Ophiodermatina Ljungman, 1867 * Ophiodermatidae * Ophiomyxidae * * Ophiocomidae * Ophiacanthina O'Hara, Hugall, Thuy, Stöhr & Martynov, 2017 * * Ophiacanthidae * * * * * Ophiojuridae