Suborder Natantia Illiger 1811 (decapod)
Full reference: C. Illiger. 1811. Prodromus Systematis Mammalium et Avium
Parent taxon: Decapoda according to M. J. Rathbun 1919
See also Illiger 1811 and Rathbun 1918
Sister taxa: Amazighopsidae, Brachyura, Carcinocarcinus, Carcinoplacidae, Chiiengphoherus, Corellicarcinus, Cyclodorippoida, Dalletastacus, Dendrobranchiata, Glabropilumus, Hecia, Heterochelida, Imocaris, Ischnodactylus dentatus, Leucosidae, Mascarananda, Mitrax, Nephropsidae, Palaeopalaemonida, Palaxius, Parafavreina, Pleocyemata, Psammograpsus, Tetrachelus, Trichopaltarion
Subtaxa: Carides
Ecology: epifaunal carnivore
Distribution: found only at USGS 5850, Mount Hope (Quaternary of Panama)