Suborder Siluroidea (ray-finned fish)
Parent taxon: Ostariophysi according to E. Casier 1966
See also Estes and Tihen 1964
Sister taxa: Allotriognathi, Anotophysa, Chanoides, Cyprinodontes, Eventognathi, Gymnonoti, Haplomi, Heterognathi, Heterosomata, Nematognathii, Otophysa, Salmopercae, Selenichthyes, Synentognathi, Xenarchi, Xenomi
Subtaxa: none
Ecology:
Distribution:
• Oligocene of United States (1: Mississippi collection)
• Eocene of Belgium (1)
Total: 2 collections each including a single occurrence