Parent taxon: Heterotremata according to C. E. Schweitzer et al. 2010
See also Collins and Wienberg Rasmussen 1992, Feldmann and Keys 1992, Fraaye and Collins 1987, Luque et al. 2017, Rumsey et al. 2016, Schweitzer and Feldmann 1999, Schweitzer and Feldmann 2002, Schweitzer et al. 2006, Tiwari et al. 1997, Todd and Collins 2005 and Vega et al. 2001
Sister taxa: Aethroidea, Archaeochiapasidae, Bellioidea, Bythograeoidea, Cancroidea, Carpilioidea, Cheiragonoidea, Componocancroidea, Corystoidea, Dairoidea, 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: Calappidae
Type: Calappa
Ecology: epifaunal carnivore
Distribution:
• Quaternary of Costa Rica (1 collection), Jamaica (2), Mexico (1), Panama (1), the Philippines (1), United States (3: Florida, South Carolina)
• Pliocene to Pleistocene of Costa Rica (1), Italy (1)
• Pliocene of Italy (5), Jamaica (1), Japan (5), the Netherlands Antilles (1), Panama (3)
• Miocene to Pliocene of the Dominican Republic (3), Venezuela (1)
• Neogene of Fiji (1), Poland (1)
• Miocene of Anguilla (1), Austria (1), Brazil (5), Brunei Darussalam (2), Chile (1), the Dominican Republic (13), Hungary (10), India (2), Italy (2), Japan (13), Malaysia (5), Malta (2), Mexico (2), New Zealand (1), North Atlantic (1), Panama (9), Puerto Rico (1), Slovakia (1), Spain (2), United States (9: Florida, Oregon, Puerto Rico), Venezuela (3)
• Oligocene to Miocene of Venezuela (1)
• Oligocene of Hungary (2), Italy (1), Mexico (2), Oman (1), United States (17: Mississippi, Oregon, Washington)
• Eocene to Oligocene of United States (1: Florida)
• Eocene of Antarctica (1), Hungary (1), Italy (18), Mexico (8), Spain (3), the United Kingdom (6), United States (8: Louisiana, North Carolina, Texas, Washington)
• Paleogene of Mexico (2)
• Paleocene of the Netherlands (1), United States (1: New Jersey)
• Cretaceous of the Netherlands (2)
Total: 194 collections including 223 occurrences