Ophiocistioidea

Ophiocistioidea
Temporal range:
Restoration of Eucladia woodwardi dorsal (top) and ventral (botoom) views
Scientific classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Echinodermata
Subphylum: Echinozoa
Class: Ophiocistioidea

Ophiocistioidea is a class of extinct echinoderms from the Palaeozoic and early Mesozoic. They most likely form a paraphyletic grade along sea cucumber stem lineage, although some sources still consider the question of ophiocistioid monophyly unresolved.

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