Chondrichthyes - Selachii - Squalidae

Full reference: L. Agassiz. 1837. Recherches Sur Les Poissons Fossiles. Tome III (livr. 8-9). Imprimérie de Petitpierre, Neuchatel viii-72

Parent taxon: Squalidae according to F. M'Coy 1855

Sister taxa: Isistius, Megasqualus, Protosqualus, Squalus

Subtaxa: Onchus arcuatus, Onchus besomensis, Onchus granulatus, Onchus hamatus, Onchus murchisoni, Onchus quadrisulcatus, Onchus semistriatus, Onchus tenuistriatus, Onchus wheathillensis

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Ecology: nektonic carnivore