Actinopteri - Tetraodontiformes - Triodontidae
Parent taxon: Tetraodontiformes according to J. S. Nelson et al. 2016
See also Jordan 1963, Santini and Tyler 2003, Tyler and Santini 2002 and Tyler and Sorbini 1996
Sister taxa: Alutera, Aracanidae, Atlanticopristis, Balistoidei, Bolcabalistidae, Cretazeus, Eodiodon, Eoplectidae, Indotrigonodon, Kyrtogymnodon, Moloidei, Oligodiodon, Ostracioidea, Ostracioidei, Pisdurodon, Plectocretacicoidei, Plectocretacicus, Protobalistidae, Tetraodontoidei, Triacanthodoidei, Triacanthoidei, Trigonodontoidae, Zignoichthyidae
Subtaxa: Triodon
Ecology: nektonic carnivore
Distribution:
• Eocene of Belgium (4 collections), Italy (1), Ukraine (2), the United Kingdom (2), United States (1: Maryland )
Total: 10 collections each including a single occurrence