Parent taxon: Heterotremata according to J. Luque et al. 2017
See also Feldmann et al. 1995 and Schweitzer et al. 2000
Sister taxa: Aethroidea, Archaeochiapasidae, Bellioidea, Bythograeoidea, Calappoidea, Cancroidea, Carpilioidea, Cheiragonoidea, Componocancroidea, Corystoidea, Dairoidea, Dorippoidea, Eriphioidea, Gecarcinucoidea, Goneplacoidea, Hymenosomatoidea, Leucosioidea, Leucosoidea, Maioidea, Majoidea, Marocarcinidae, Montezumelloidea, Orithyioidea, Parthenopoidea, Pilumnoidea, Pilumnoidoidea, Portunoidea, Potamoidea, Progeryonoidea, Pseudothelphusoidea, Retroplumoidea, Trichodactyloidea, Trichopeltarioidea, Xanthoidea
Subtaxa: Hexapodidae
Type: Hexapus
Ecology: epifaunal carnivore
Distribution:
• Quaternary of the Philippines (1 collection)
• Miocene of Brunei Darussalam (3), Colombia (1), Japan (3), Malaysia (2), Mexico (1), Panama (1), Trinidad and Tobago (2), Venezuela (2)
• Eocene of Barbados (1), Egypt (1), France (1), Italy (8), the Netherlands (1), Pakistan (1), Peru (1), the United Kingdom (2), United States (9: California, Oregon, Washington)
• Paleocene of Argentina (1), Greenland (1), United States (1: Alabama)
Total: 44 collections including 49 occurrences