†family Calclyridae Frizzell and Exline 1955 (brittle star)
Full reference: D. L. Frizzell and H. Exline. 1955. Monograph of fossil holothurian sclerites. Bulletin of the Missouri University School of Metallurgy and Mines, Technical series 89:1-204
Parent taxon: Ophiuroidea according to H. Kozur and H. Mostler 1989
Sister taxa: Ataxaster, Calclyra, Calyptactis, Cheiropterasteridae, Encrinasteridae, Eophiuridae, Euryalida, Euzonosomatidae, Hallasteridae, Klasmuridae, Lumectaster, Myophiuroida, Oegophiurida, Oegophiuridea, Oegophiuroida, Ophiaulaxoides, Ophioflabellum, Ophioma, Ophiotrigonum, Ophiurella, Ophiurida, Ophiuridea, Phrynophiurida, Stenasteridae, Stenurida
Subtaxa: none
Type: Calclyra
Ecology: slow-moving low-level epifaunal detritivore-suspension feeder