Parent taxon: Heterotremata according to C. E. Schweitzer et al. 2010
See also Luque et al. 2017
Sister taxa: Aethroidea, Archaeochiapasidae, Bellioidea, Bythograeoidea, Calappoidea, Cancroidea, Carpilioidea, Cheiragonoidea, Componocancroidea, Corystoidea, Dorippoidea, Eriphioidea, Gecarcinucoidea, Goneplacoidea, Hexapodoidea, Hymenosomatoidea, Leucosioidea, Leucosoidea, Maioidea, Majoidea, Marocarcinidae, Montezumelloidea, Orithyioidea, Parthenopoidea, Pilumnoidea, Pilumnoidoidea, Portunoidea, Potamoidea, Progeryonoidea, Pseudothelphusoidea, Retroplumoidea, Trichodactyloidea, Trichopeltarioidea, Xanthoidea
Subtaxa: Dacryopilumnidae Dairidae Dairididae
Type: Daira
Ecology: epifaunal carnivore
Distribution:
• Quaternary of Mexico (1 collection)
• Pliocene of Fiji (4)
• Miocene of Algeria (2), Austria (1), Egypt (1), Hungary (5), Jamaica (1), Japan (1), Malta (1), Moldova (4), Morocco (2), Poland (2), Ukraine (1)
• Neogene of Poland (1)
• Oligocene of Italy (4)
• Eocene of Italy (9), Spain (3)
• Paleogene of Hungary (1)
Total: 44 collections including 51 occurrences