Chondrichthyes - Xenacanthiformes - Xenacanthidae

Parent taxon: Xenacanthidae according to M. Ginter et al. 2010

Sister taxa: Diacranodus, Mooreodontus, Platyacanthus, Pleuracanthus, Plicatodus, Wurdigneria, Xenacanthus

Subtaxa: Triodus elpia, Triodus moorei

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Ecology: nektobenthic carnivore