Full reference: W. I. Ausich. 1998. Phylogeny of Arenig to Caradoc crinoids (Phylum Echinodermata) and suprageneric classification of the Crinoidea. The University of Kansas Paleontological Contributions, n. s. 9:1-36
Parent taxon: Disparida according to D. F. Wright et al. 2017
See also Ausich 1998
Sister taxa: Allagecrinacea, Allagecrinoidea, Alphacrinidae, Anomalocrinacea, Athenacrinidae, Aureocrinus, Belemnocrinoidea, Brutopisocrinus, Calceocrinacea, Calceocrinida, Changninocrinus, Cincinnaticrinacea, Claviculacrinus, Eocicerocrinus, Eustenocrinida, Gongrocrinus, Heracrinus, Heterocrinacea, Heterocrinidae, Heterocrinoidea, Homocrinacea, Homocrinida, Junocrinus, Macnamaratylus, Maennilicrinida, Myelodactylacea, Myelodactylida, Paradoxocrinidae, Pariocrinus, Perittocrinacea, Perritocrinus, Pisocrinacea, Pisocrinida, Pisocrinoidea, Regnellicrinus, Resetocrinus, Tornatilicrinidae, Westheadocrinus, Xisoallogecrinus
Subtaxa: Tetragonocrinidae
Ecology: stationary intermediate-level epifaunal suspension feeder
Distribution:
• Arenig of the United Kingdom (1 collection)
• Ordovician of Argentina (1), Spain (1), the United Kingdom (5)
Total: 8 collections each including a single occurrence