Parent taxon: Orthoceratoidea according to A. Pohle et al. 2022
Sister taxa: Actinocerida, Dissidocerida, Lituitida, Offleyoceratidae, Orthocerida, Paraphragmitidae, Protobactritidae, Slemmestadoceras, Orthoceras celticum, Orthoceras increscens, Orthoceras lateseptatum, Orthoceras billiemense, Orthoceras blakei, Orthoceras acum, Orthoceras lennaense, Orthoceras styriacum, Orthoceras variestriatum, Orthoceras nodosum, Orthoceras mojsisovicsi, Orthoceras indoaustralicum, Orthoceras spitiense, Orthoceras shastense, Orthoceras baconicum, Orthoceras multilabiatum, Orthoceras triadicum, Pseudorthocerida, Orthoceras subellipticum, Orthoceras sandlingense, Orthoceras rotundulum, Orthoceras subtiliseptatum, Orthoceras austriacum, Orthoceras pulchellum, Orthoceras pulchristriatum
Subtaxa: none
Ecology: fast-moving nektonic carnivore
Distribution: there are no occurrences of Riocerida in the database