Dinopteryx is an extinct genus of prehistoric beardfish from the Late Cretaceous period. It contains a single species, D. spinosus, known from the Santonian of Lebanon. It is the only member of the extinct family Dinopterygidae, which is considered a distinct family of the Polymixiiformes. It was previously placed in the genus Hoplopteryx.
Sedenhorstia is an extinct genus of prehistoric bony fish that lived from the Cenomanian to Campanian.
Lissoberyx is an extinct genus of prehistoric ray-finned fish belongon to the family Trachichthyidae. Lissoberyx is a trachichthyid, but it shows more resemblance to the holocentrids than any other trachichthyid.
Daedalichthys is an extinct genus of prehistoric freshwater ray-finned fish that lived during the Early Triassic epoch. It contains a single species, D. formosa from the Olenekian-aged Cynognathus Assemblage Zone of South Africa. It was previously classified in Dictyopyge.
Helichthys is an extinct genus of prehistoric bony fish that lived during the Early Triassic epoch in what is now South Africa.
Sakamenichthys is an extinct genus of prehistoric bony fish that lived during the Early Triassic epoch in what is now Madagascar. Fossils were recovered from beds of the Middle Sakamena Formation of the Beroroha basin in the southern part of the island.
Dapaloides is an extinct genus of prehistoric estuarine ray-finned fish that lived during the early Oligocene to the early Miocene epoch. Many of the remains now assigned to this genus were previously assigned to Dapalis. It was previously classified as a "percichthyid" under a former treatment of the family, but is now treated as an indeterminate perciform.
Enoplophthalmus is an extinct genus of prehistoric bony fish that lived during the early Oligocene epoch.
Eophycis is an extinct genus of prehistoric morid gadiform fish that lived during the early Oligocene epoch in the Paratethys ocean in what now the Polish Carpathians.
Berycomorus is an extinct genus of prehistoric marine ray-finned fish that lived during the late Eocene epoch. It contains a single species, B. firdoussi, from the Pabdeh Formation of Iran.
Balistomorphus is an extinct genus of prehistoric triggerfish during the early Oligocene epoch in what is now Canton Glarus, Switzerland. It inhabited the marine environment of the Tethys Ocean.
Cryptobalistes is an extinct genus of triplespine that lived during the early Oligocene epoch. It contains a single species, C. brevis that inhabited the seas around what is now Canton Glarus, Switzerland. Fossils are known from the Matt Formation. It is thought to be closely allied with another triplespine from Glarus, Acanthopleurus. Cryptobalistes, Acanthopleurus, and Protacanthodes are thought to be basal members of the Triacanthidae.
Acanthopleurus is an extinct genus of marine triplespine that lived in the seas over what is now Europe during the early Oligocene epoch.
Abadzekhia is an extinct genus of prehistoric snake mackerel that lived from the early Oligocene epoch in what is now the Caucasus Mountains of Southern Russia. Fossils of this genus have also been found in Germany.
Eolactoria sorbinii is an extinct prehistoric boxfish that lived during the Lutetian epoch of the middle Eocene, in Monte Bolca. 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, but much longer. E. sorbinii had a fifth spine between the two eye-spines, arranged and looking very much like a nose.
Eugnathides is an extinct genus of prehistoric bony fish that lived from the Oxfordian to the early Tithonian stage of the Late Jurassic epoch. Eugnathides may have been similar to Sphaerodontes.
Cylindracanthus is an extinct, enigmatic genus of marine ray-finned fish with fossils known throughout North America, Europe, Asia and Africa from the Late Cretaceous to the late Eocene, with potential Oligocene records and a possible Miocene record also known. It is exclusively known from its distinctive partial remains, which are long cylindrical bony spines that are usually considered rostrum fragments, as well as some associated teeth. These spines are abundant & widespread throughout this timespan, and are useful indicators of a nearshore marine environment, but the taxonomic identity of the fish is still highly uncertain and debated.
Ichthyokentema ("fish-goad") is an extinct genus of stem-teleost fish that lived during the Late Jurassic. It contains one species, I. purbeckensis, which is known from the Purbeck Group of Dorset, England. I. purbeckensis was originally described as a species of Pholidophorus by William Davies in 1887, but was moved to its own genus by Arthur Smith Woodward in 1941.
Ligulalepis is an extinct genus of stem-osteichthyans which lived from the Silurian to the Early Devonian. Ligulalepis was first described from isolated scales found in the Taemas-Wee jasper limestones of New South Wales by Hans-Peter Schultze (1968) and further material described by Burrow (1994). A nearly complete skull found in the same general location was described in Nature by Basden et al. (2000) claiming the genus was closely related to basal ray-finned fishes (Actinopterygii). In 2015 Flinders University student Benedict King found a more complete new skull of this genus which was formally described by Clement et al. (2018), showing Ligulalepis to be on the stem of all osteichthyans.
Palaeogadus is an extinct genus of prehistoric bony fish. It was a nektonic carnivore found in coastal and estuarine marine environments, with fossils found from the Oligocene to Miocene at sites in Denmark, Germany, Poland, Georgia, and Azerbaijan.
