Parent taxon: Conodonta according to M. L. Golding and M. J. Orchard 2018
See also Donoghue et al. 2008, Sweet 1988 and Viira and Einasto 2003
Sister taxa: Acodina, Aldridgeodus, Aldridgeognathus, Amphigeisinidae, Ancidontus, Ancyrogondolella, Apteracontiodus, Belodellida, Bengtsonella, Branmehla, Chengyuania, Coleodontidae, Costiconus, Dasytodus, Diaphanodus, Dischidognathus, Distacodidae, Dolborodina, Enantiognathus, Euconodonta, Euconodonta, Euconodonta, Fahraeosodus, Falcodus, Gagievodus, Gobduntaulepis, Heterdontoides, Hindeodella andrusovi, Iowagnathus, Llandoverygnathus, Lundodus, Minimodus, Nasusgnathus, Noixodontus, Omanognathus, Oslodus, Palmatodella, Panderodontida, Pandorinella, Paraconodontida, Parvigondolella, Polygnathida, Polyplacognathida, Prioniodontida, Protopanderodontida, Pseudobelodella, Rexroadus, Rhynchognathodus, Rotundoconus, Sagittodontus, Silurognathus, Spathognathodus, Tardogondolella, Trichonodella, Youngquistognathus, Zygognathus
Subtaxa: Anchignathodontidae Elictognathidae Ellisoniidae Gamachignathus Gondolellidae Gondolellidea Gondolelloidea Idiognathodontidae Kockelellidae Microzarkodina Ozarkodinina Palmatolepididae Periodon Plectodina Pterospathodontidae Spathognathodontidae Spathognathodontodae Vjalovognathidae
Ecology: nektonic carnivore