Cephalopoda - Ellesmerocerida - Rioceratidae
Full reference: B. Kröger and D. H. Evans. 2011. Review and paleoecological analysis of the late Tremadocian – early Floian (Early Ordovician) cephalopod fauna of the Montagne Noire, France. Fossil Record 14(1):5-34
Parent taxon: Ellesmerocerida according to B. Kröger and D. H. Evans 2011
Sister taxa: Acaroceratidae, Antacaroceras, Balkoceratidae, Bambusoceras, Bathmoceratidae, Cyptendocerina, Cyrtocerinina, Ellesmeroceratidae, Ellesmeroceratina, Eocyckistomiceras, Eothinoceratidae, Huaiheceratidae, Hunyuenoceras, Parapalaeoceras, Phthanoncoceratidae, Plectronoceratidae, Plectronoceratina, Protocycloceratidae, Qiushougouceras, Rudolfoceratidae, Shideleroceratidae, Theskeloceras, Vassaroceras, Xiaoshaoceras
Subtaxa: Felinoceras Rioceras
Ecology: nektobenthic carnivore
Distribution: