Protacanthopterygidae
Protacanthopterygidae is a family of ray-finned fishes within the superorder Protacanthopterygii. Its taxonomic circumscription has varied among authorities, with some classifications treating Protacanthopterygidae as a distinct family and others placing its members within broader protacanthopterygian lineages or treating the group as a synonym or subfamily of a related family. This uncertain status reflects ongoing revisions in the systematics of Protacanthopterygii, aided by new morphological assessments and molecular data.
The group is defined by a relatively small number of genera and species, with a distribution that
Phylogenetic work continues to clarify the relationships of Protacanthopterygidae to other protacanthopterygians, including the salmoniforms and
See also: Protacanthopterygii, Osmeriformes, Salmoniformes, Esociformes.