The Ophiurida are an order of echinoderms within the class Ophiuroidea. It includes the vast majority of living brittle stars.

Ophiurida. Retrieved May, 22 2023, from en.wikipedia.org/wiki/Ophiurida.

Ophiuridae are a large family of brittle stars of the suborder Ophiurina.

Ophiuridae. Retrieved May, 22 2023, from en.wikipedia.org/wiki/Ophiuridae.