†order Riocerida King and Evans 2019 (mollusk)
Parent taxon: Orthoceratoidea according to A. Pohle et al. 2022
Sister taxa: Actinocerida, Dissidocerida, Lituitida, Offleyoceratidae, Orthocerida, Paraphragmitidae, Protobactritidae, Slemmestadoceras
Subtaxa: none
Ecology: fast-moving nektonic carnivore
Distribution: there are no occurrences of Riocerida in the database