†family Urosphenidae Gill 1884 (ray-finned fish)
Osteichthyes - Syngnathiformes - Urosphenidae
Parent taxon: Syngnathiformes according to R. van der Laan 2019
See also Bannikov 2014, Carnevale et al. 2014 and Jordan 1963
Sister taxa: Aulorhamphidae, Aulostomidae, Aulostomoidea, Callionymoidei, Centriscidae, Dactylopteroidei, Fistularioididae, Gerpegezhidae, Macrorhamphosidae, Mulloidei, Paraeoliscidae, Parasynarcualidae, Pegasidae, Rhamphosidae, Solenostomidae, Syngnathoidei
Subtaxa: Urosphen
Ecology:
Distribution: found only at Monte Bolca, Pesciara (general) (Eocene of Italy)