Parent taxon: Monobathrida according to G. M. Philip 1961
Sister taxa: Acrocrinitidae, Amarsupiocrinus, Amblacrinus, Bolicrinus, Carpocrinidae, Cerasmocrinus, Closterocrinus, Compsocrinina, Delgadocrinidae, Dolatocrinicae, Eknomocrinidae, Eocamptocrinus, Eucalyptocrinitidae, Exsulacrinus, Glaphyocrinus, Glyptocrinina, Habrotecrinidae, Harrelicrinus, Hyrtanecrinus, Ilmocrinus, Ivanovaecrinus, Lobomelocrinus, Marhoumacrinus, Marsupiocrinidae, Nanicrinus, Neocamtocrinus, Pandanocrinus, Paracrocrinus, Paratalarocrinus, Patelliocrinidae, Phrygilocrinus, Praedicticrinus, Shimantocrinus, Struszocrinus, Tanaocrinina, Xenocrinidae
Subtaxa: none
Ecology: stationary upper-level epifaunal suspension feeder
Distribution: there are no occurrences of Hexacriniticae in the database