| Eurynotoides Temporal range: Permian | |
|---|---|
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | † Eurynotoidiformes |
| Family: | † Eurynotoididae |
| Genus: | † Eurynotoides Berg, 1940 |
| Species | |
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| Synonyms | |
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Eurynotoides is an extinct genus of prehistoric bony fish [1] in the family Eurynotoididae of the order Eurynotoidiformes. [2]
The genus was erected by Berg in 1940. In 1974, Sergienko described a new genus and species Heterolepis multa from the Middle Permian (Kazanian) of Kemerovo Region, Russia, as a new member of the Palaeoniscidae family. Howerer, Heterolepis was already in use for the extant snake Heterolepis capensis (Smith, 1847), making Sergienko's naming a junior homonym. In 2023, A. S. Bakaev redescribed "Heterolepis" multa as a new species in the genus Eurynotoides, E. multa. This species is different from E. nanus and E. costatus by having ganoin peninsula-shaped structures on the anterior margin of the scale as well as by the presence of denticles on both posterior and lower edge of the scale. [2]
Australosomus is an extinct genus of prehistoric ray-finned fish that lived during the Early Triassic epoch in what is now Greenland, Kenya, Tanzania, Madagascar, South Africa and Canada.
Dictyopyge is an extinct genus of prehistoric freshwater ray-finned fish that inhabited eastern North America during the early part of the Late Triassic. Two species are recognized, both from the the early Carnian-aged Doswell Formation in what is now Virginia, United States:
Agecephalichthys is an extinct genus of prehistoric freshwater "palaeonisciform" ray-finned fish that lived during the Anisian age. It contains a single species, A. granulatus from the Hawkesbury Sandstone in what is now New South Wales, Australia.
Ebenaqua is an extinct genus of bobasatraniiform bony fish that lived during the Lopingian epoch, of what is now Blackwater, Queensland, Australia. Fossils are found in the Rangal Coal Measures, which are Changhsingian in age. Its type and only species is Ebenaqua ritchiei.
Chichia is an extinct genus of freshwater ray-finned fish that lived during the Guadalupian epoch. It contains a single species, C. gracilis, known from the Bogda Shan of Xinjiang, China.
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.
Elonichthys is an extinct genus of prehistoric bony fish. The genus is represented by several species from Carboniferous and Permian of Europe, Greenland, South Africa, and North America.
Aphelolepis is an extinct genus of prehistoric ginglymodian bony fish. It contains one species, A. delpi, that lived during the Ladinian age of the Middle Triassic epoch in what is now Franconia, Germany. It is generally considered a semionotiform.
Crenilepis is an extinct genus of prehistoric marine ray-finned fish that lived in the seas of present-day Europe during the Middle Triassic epoch. It contains a single species, C. sandbergi from the Anisian of Germany, Spain, and the Besano Formation of the Swiss-Italian border.
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.
Isadia is an extinct genus of prehistoric freshwater ray-finned fish from the order Eurynotoidiformes. It is known from the Permian of European Russia. The genus Amblypterina is partially considered a junior synonym of both Isadia and Kichkassia.
Boreolepis is an extinct genus of prehistoric marine ray-finned fish that lived from the Late Kungurian to the Wuchiapingian of the Permian period. It inhabited the high northern latitudes in what is now Greenland and European Russia.
Urosthenes is an extinct genus of prehistoric bony fish that lived during the Lopingian to Middle Triassic epochs in what is now New South Wales, Australia.
Prohalecites is an extinct genus of ray-finned fish from the Ladinian and possibly Carnian (Triassic) of Italy. It is the oldest known teleosteomorph, a group that includes extant teleosts and their close fossil relatives.
Eigilia is an extinct genus of prehistoric bony fish that lived during the Roadian age in what is now Kazakhstan.
Korutichthys is an extinct genus of prehistoric marine bony fish that lived during the Lopingian epoch in what is now Krasnoyarsk Krai, Russia. It was first referred to the family Amblypteridae, a view that was later questioned.
Igornella is an extinct genus of prehistoric bony fish that lived during the Gzhelian (Stephanian) to Asselian ages in what is now France (Burgundy).
Dorypterus is a small, extinct genus of prehistoric ray-finned bony fish. It lived during the Wuchiapingian stage of the late Permian epoch in what is now Germany (Kupferschiefer) and England. It is a hypsisomatic bobasatraniiform with a high dorsal fin. Due to anatomical differences with other bobasatraniiforms, such as the presence of pelvic fins and the reduced scale cover, Dorypterus is placed in its own monotypic family, Dorypteridae.
Mamulichthys is an extinct genus of prehistoric bony fish that lived during the Urzhumian age in what is now European Russia. The type and only species, Mamulichthys ignotus, is known from a single specimen preserving the skull and anterior body portion, which was recovered from the uppermost part of the Amanak Formation. Holotype of M. ignotus is the first complete skeleton of discordichthyiform.
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