Full reference: W. K. Spencer. 1925. A monograph of the British Palaeozoic Asterozoa. Monograph of the Palaeontographical Society, London 1922(6):237-324
Parent taxon: Ophiuroidea according to W. K. Spencer 1925
See also Lehmann 1957 and Owen 1965
Sister taxa: Ataxaster, Calclyra, Calclyridae, Calyptactis, Cheiropterasteridae, Encrinasteridae, Euryalida, Euzonosomatidae, Lumectaster, Muldaster, Myophiuridadup, Nodolanx, Oegophiurida, Oegophiuridea, Oegophiuroida, Ophiaulaxoides, Ophioma, Ophiopetagno, Ophiotrigonum, Ophiurella, Ophiurida, Ophiuridea, Phrynophiurida, Stenasteridae, Zygophiurae
Subtaxa: none
Type: Hallaster
Ecology: slow-moving low-level epifaunal detritivore-suspension feeder
Distribution: there are no occurrences of Hallasteridae in the database