Order Xenarchi (ray-finned fish)
Parent taxon: Ostariophysi according to D. S. Jordan 1963
Sister taxa: Allotriognathi, Anotophysa, Chanoides, Cyprinodontes, Eventognathi, Gymnonoti, Haplomi, Heterognathi, Heterosomata, Nematognathii, Otophysa, Salmopercae, Selenichthyes, Siluroidea, Synentognathi, Xenomi
Subtaxa: Asineopidae
Ecology:
Distribution: there are no occurrences of Xenarchi in the database