Parent taxon: Conodonta according to P. C. J. Donoghue et al. 2008
See also Pyle and Barnes 2002, Stouge and Bagnoli 1999 and Sweet 1988
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, Ozarkodinida, Palmatodella, Panderodontida, Pandorinella, Paraconodontida, Parvigondolella, Polygnathida, Polyplacognathida, Protopanderodontida, Pseudobelodella, Rexroadus, Rhynchognathodus, Rotundoconus, Sagittodontus, Silurognathus, Spathognathodus, Tardogondolella, Trichonodella, Youngquistognathus, Zygognathus
Subtaxa: Acodontidae Anticostiodus Balognathidae Balognathoidea Cyrtoniodontidae Distomodontidae Histiodella Multioistodontidae Oepikodus Oistodontidae Paracordylodontidae Paracordylodus Periodontidae Phragmodus Plectodinidae Prioniodinida Prioniodinina Prioniodontacea Rhipidognathidae Sagittodontina Strachanognathidae
Ecology: nektonic carnivore