Parent taxon: Brachyura according to C. E. Schweitzer et al. 2010
Sister taxa: Bellioidea, Brachyrhyncha, Bythograeoidea, Cancroidea, Componocancroidea, Cryptochiroidea, Cyclodorippoidea, Dairoidea, Dakoticancroidea, Dromiacea, Eubrachyura, Gecarcinucoidea, Glaessneropsoidea, Goneplacoidea, Grapsoidea, Homolodromioidea, Homoloidea, Konidromitoidea, Leucosioidea, Marocarcinidae, Mcrocarcinidae, Ocypodoidea, Oxystomata, Palicoidea, Parthenopoidea, Pilumnoidea, Pilumnoidoidea, Pinnotheroidea, Pisidae, Portunoidea, Potamoidea, Potamonautidae, Pseudothelphusoidea, Retroplumoidea, Rioarribia, Trichodactyloidea
Subtaxa: Ameridromia, Basinotopidae, Cyamocarcinus, Diaulacidae, Dromiidae, Dynomenidae, Eotrachynotocarcinus, Gemmellarocarcinus, Mesodromilites, Ovamene, Sphaerodromiidae, Stephanometopon
Ecology: epifaunal carnivore