Prehistoric percomorph genera

Amphistium paradoxum (from , 'on both sides', 'sail', and 'extraordinary'), the only species classified under the genus Amphistium and the family Amphistiidae, is a fossil fish which has been identified as a Paleogene relative of the flatfish, and as a transitional fossil. In a typical modern flatfish, the head is asymmetric with both eyes on one side of the head. In Amphistium, the transition from the typical symmetric head of a vertebrate is incomplete, with one eye placed near the top of the head.

thumb|right|upright|Cockerellites|Cockerellites liops

Blochius is an extinct genus of billfish from the Eocene. It is only known from the Monte Bolca deposits in Italy, and was likely restricted to shallow, tropical waters of the Tethys Ocean.

Eolactoria ("dawn Lactoria") is an extinct genus of highly unusual prehistoric boxfish from the Eocene. It contains a single species, E. sorbinii from the Ypresian-aged Monte Bolca site in Italy. left|thumb|Life restoration It had two pairs of long spines, one over each eye, and one pair beneath the anal and caudal fins, arranged very similarly to those possessed by the modern genus Lactoria (e.g., "cowfish"), but much longer. E. sorbinii had a fifth spine between the two eye-spines, arranged and looking very much like a nose.

Sphenocephalus (from , 'wedge' and 'head') is an extinct genus of ray-finned fish that lived during the Cretaceous period. Fossils have been found in England and Italy.

Eomola is an extinct genus of ocean sunfish that inhabited the northeastern Tethys Ocean during the Eocene. It contains a single species, E. bimaxillaria from the Bartonian-aged Kuma Formation of Krasnodar Krai, Russia.

Vomeropsis is an extinct genus of prehistoric jack fish that lived from the early to middle Eocene.

Acanthonemus (from , 'spine' and 'to distribute' or 'covered') is an extinct genus of prehistoric marine ray-finned fish that lived from the early Eocene. It contains a single species, A. subaureus (synonyms: A. bertrandi Agassiz, 1834, A. filamentosus Agassiz, 1834), known from the famous Monte Bolca site in Italy. It is the only genus in the extinct family Acanthonemidae.

Eozanclus ("dawn Zanclus") is an extinct genus of marine ray-finned fish, closely related to the modern Moorish idol, that lived during Eocene. It contains a single species, E. brevirostris that lived during the late Ypresian epoch in what is now Monte Bolca, northern Italy. It is one of two known fossil Moorish idols from Monte Bolca alongside Angiolinia. It differs from its living relative by having a much shorter snout.

Sparnodus is an extinct genus of prehistoric perciform fish in the family Sparidae. Species of this genus were nektonic carnivores. These fishes lived in the Cenozoic Era, in the Oligocene and Paleocene (55.8 to 23.03 Ma).

Eolates ("dawn Lates") is an extinct genus of prehistoric lates perch from the Paleogene of Europe. It contains three species, two marine and one freshwater, known from the early-middle Eocene and Late Oligocene. left|thumb|Specimen of E. gracilis The following species are known:

Eastmanalepes (meaning "Eastman's scale) is an extinct genus of prehistoric jackfish known from the Eocene of Europe. It contains a single species, E. primaevus, known from the late Ypresian of the Monte Bolca site in Italy. It was originally described as a species of the jackfish genus Caranx, which it has a superficially similar outline to. However, it differs from Caranx, and almost all other jackfish, in that it has very large, very pronounced scutes along its lateral line. According to Bannikov, E. primaevus is probably more related to the extinct jackfish genera, Eothynnus and Teratichth

Fistularioides (meaning "Fistularia-like") is an extinct genus of prehistoric marine syngnathiform fish that lived during the Early Eocene of Europe. It is known from two species, F. veronensis Blot, 1980 and F. phyllolepis Blot, 1980 from the Monte Bolca site of Italy. left|thumb|Closeup of skull As its name suggests, it superficially resembled and was related to the cornetfishes, though it belonged to its own extinct family, the Fistularioididae. It is one of two known genera from this family, alongside Pseudosyngnathus from the same locality.

Absalomichthys velifer is an extinct, prehistoric manefish that lived during the Upper Miocene of what is now Southern California in the United States. Its dorsal fin was huge in comparison with living species. It is known from the Modelo Formation of Los Angeles County.

Eobothus ('dawn Bothus') is an extinct genus of very small, fossil marine flatfish known from the Eocene. It is one of the oldest flatfish known from fossil remains.

Ceratoichthys is an extinct genus of lookdown-like prehistoric jackfish that lived during the late Ypresian epoch, of the Early Eocene. It contains a single species, C. pinnatiformis of Monte Bolca, Italy. It and Vomeropsis are the only known members of the extinct subfamily Vomeropsinae.