Moythomasia is an extinct genus of early ray-finned fish from the Devonian period of Europe and Australia.
Palaeoniscum is an extinct genus of ray-finned fish from the Permian period (Guadalupian-Lopingian) of England, Germany, Turkey, North America and Greenland, and possibly other regions. The genus was named Palaeoniscum in 1818 by Henri Marie Ducrotay de Blainville, but was later misspelled as Palaeoniscus by Blainville and other authors. Palaeoniscum belongs to the family Palaeoniscidae.
The Palaeonisciformes, commonly known as "palaeoniscoids" are an extinct grouping of primitive ray-finned fish (Actinopterygii), spanning from the Silurian/Devonian to the Cretaceous. They are generally considered paraphyletic, but their exact relationships to living ray-finned fish are uncertain. While some and perhaps most palaeoniscoids likely belong to the stem-group of Actinopteryii, it has been suggested that some may belong to the crown group, with some of these possibly related to Cladistia and/or Chondrostei. Many palaeoniscoids share a conservative body shape and a similar arrangement of skull bones.
Amblypterus is an extinct genus of freshwater ray-finned fish that lived during the Gzhelian and Cisuralian epoch in what is now Europe and possibly India and Argentina. Potential indeterminate records stretch as far back as the early Carboniferous.
Neuburgella is an extinct genus of prehistoric bony fish that lived during the Cisuralian epoch in what is now Kazakhstan.
Rhabdolepis is an extinct genus of prehistoric bony fish that lived during the Asselian age of the Cisuralian epoch in what is now Germany and France (Burgundy).
Paralogoniscus is an extinct genus of prehistoric bony fish that lived during the Cisuralian epoch in what is now East Kazakhstan, Kazakhstan. It could reach body lengths of up to ca. 50 cm (20 in).
Acrolepis is an extinct genus of prehistoric marine bony fish that lived from the Famennian stage of the Devonian to the early Triassic epoch. Some species from the Early Triassic of Tasmania are also ascribed to Acrolepis.
Nematoptychius is an extinct genus of prehistoric bony fish that lived from the Visean age of the Mississippian epoch to the Bashkirian age of the Pennsylvanian epoch in what is now Scotland, Belgium and France.
Wardichthys is an extinct genus of prehistoric bony fish that lived during the Tournaisian stage of the Mississippian epoch.
Euthynotus is an extinct genus of prehistoric bony fish that lived during the early Toarcian stage of the Early Jurassic epoch. It is generally considered the basalmost pachycormiform.
Megapleuron is an extinct genus of prehistoric sarcopterygian or lobe-finned fish that lived during the Asselian age of the Cisuralian epoch in what is now Burgundy, France.
Acentrophorus is an extinct genus of prehistoric freshwater and marine ray-finned fish from the Roadian to the Wuchiapingian of England, Germany (Kupferschiefer), Italy and Russia. There may also be a Triassic occurrence in Australia.
Aeduella is an extinct genus of prehistoric freshwater bony fish that lived during the Gzhelian and Asselian-Sakmarian ages in what is now France, Germany, Switzerland and the Czech Republik.
Coccolepis is an extinct genus of prehistoric marine ray-finned fish in the family Coccolepididae. Originally including most species within the family, it is now restricted to two species from the Late Jurassic Solnhofen Limestone of Germany. The holotype of C. bucklandi, designated and described by Louis Agassiz, was thought to be lost but was later rediscovered in Neuchâtel.
Charleuxia is an extinct genus of prehistoric freshwater ray-finned fish that lived during the Asselian age in what is now Burgundy, France (Autun). It may possibly belong to the genus Paramblypterus.
Gardinerichthys is an extinct genus of freshwater actinopterygian bony fish from the Cisuralian epoch of Germany, and the middle Permian of India. The type species, G. latus, was discovered in Asselian aged layers (Rotliegend).
Palaeoniscidae is an extinct family of "palaeoniscoid" ray-finned fishes (Actinopterygii). The family includes the genus Palaeoniscum and potentially other Palaeozoic and Mesozoic early actinopterygian genera. The name is derived from the Ancient Greek words παλαιός and ὀνίσκος.
Tarasiiformes is an extinct order of prehistoric ray-finned fish.
Acrolepididae is an extinct family of ray-finned fish. Genera referred to Acrolepididae existed from the Early Carboniferous period to the Early Triassic epoch. They were nektonic carnivores with a fusiform body.
