Parent taxon: Decapoda according to C. E. Schweitzer and R. M. Feldmann 2009
Sister taxa: Acanthinopus, Alcmonacaris, Anaglyptus, Anomura, Archeosolenocera, Archithelphusa, Aspidogaster, Astacidea, Axiidea, Benthesicymus, Blaculla, Blepharipoda, Buergerocaris, Calapa, Cambarus, Carcinocarcinus, Carcinoplacidae, Carpilodes, Charassocarcinus, Chiiengphoherus, Clibanarius, Corellicarcinus, Cretachlorodus, Dendrobranchiata, Doratiopus, Erymastacus, Gampsurus, Gebia, Gebiidea, Geryon, Glabropilumus, Halice, Hecia, Hefriga, Hemiplax, Heterochelida, Heterocrypta, Homelys, Huhatanka, Imocaris, Ixoides, Kierionopsis, Klytia, Laeviranina, Leiothorax, Leptoides, Lissopsis, Martinezicancer, Mascarananda, Matuta, Mecochiria, Meyerella, Microcorystes, Mitrax, Neopilumnoplax, Nephropsidae, Noetlingia, Notostomus, Oedisoma, Olinaecaris, Oxythyreus, Palaeohomarus, Palaeopolycheles, Palaxius, Palinura, Parafavreina, Parapinnixa, Paratymolus, Parvocaris, Penaeus, Pinnacaris, Pleocyemata, Polyonyx, Prepaeduma, Protonecrocarcinus, Pseudoraninella, Semiranina, Sicyonia, Symethis, Syphax, Tetrachelus, Thalassinidea, Thaumastoplax, Torynomma, Trachycarcinus, Trachynotus, Triasiglyphea, Trichopaltarion, Varuna
Subtaxa: Bellioidea, Brachyrhyncha, Bythograeoidea, Cancroidea, Componocancroidea, Cryptochiroidea, Cyclodorippoidea, Dairoidea, Dakoticancroidea, Dromiacea, Dromioidea, 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
Ecology: epifaunal carnivore