†family Hapalocrinidae Jaekel 1895 (Sea lily)
Crinoidea - Monobathrida - Hapalocrinidae
Parent taxon: Platycrinitacea according to W. I. Ausich 1986
See also Ramsbottom 1958 and Ubaghs et al. 1978
Sister taxa: Hirneacrinidae, Platycrinitidae
Subtaxa: Bogotacrinus Cantharocrinus Clematocrinus Cordylocrinus Culicocrinus Cyttarocrinus Hapalocrinus Lyonicrinus Thallocrinus Theleproktocrinus
Type: Hapalocrinus
Ecology: stationary upper-level epifaunal suspension feeder
Distribution:
• Devonian of Australia (1 collection), the Czech Republic (1), Germany (3), United States (7: New York)
• Silurian of Australia (4), the United Kingdom (4), United States (10: Illinois, Indiana, Iowa, Missouri, West Virginia)
• Ordovician of United States (1: Illinois)
Total: 31 collections including 40 occurrences