Eoaulostomus

Eoaulostomus is an extinct genus of marine ray-finned fish, closely related to the modern trumpetfish, that lived during the Eocene. It contains two species, E. bolcensis and E. gracilis Blot, 1981, both known from the Early Eocene-aged Monte Bolca site of Italy.
The type species, E. bolcensis, was initially described in error by Volta as a fossil specimen of the Chinese trumpetfish before being moved to its own species within Fistularia by de Blainville. It was later reclassified into Aulostomus and remained there for over a century until reclassification into its own genus, with the description of a new species.