| Euthynotus Temporal range: | |
|---|---|
 | |
| Euthynotus incognitus | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | † Pachycormiformes |
| Family: | † Pachycormidae |
| Genus: | † Euthynotus Agassiz, 1843 |
| Synonyms [2] | |
| |
Euthynotus is an extinct genus of prehistoric bony fish that lived during the early Toarcian stage of the Early Jurassic epoch. [1] It is generally considered the basalmost pachycormiform. [3]
Euthynotus has two species classified within it: [4]
Pachycormus is an extinct genus of pachycormiform ray-finned fish known from the Early Jurassic of Europe. The type species P. macropterus was first named as a species of Elops by Henri Marie Ducrotay de Blainville in 1818, it was placed into the newly named genus Pachycormus by Louis Agassiz in 1833. Fossils have been found in marine deposits from France, Germany and England. Pachycormus has recently been considered monotypic, only containing P.macropterus, with other species considered junior synonyms of the former, though this has subsequently been questioned. Pachycormus has generally been considered basal among Pachycormiformes, with a recent phylogeny finding it to be the second most basal pachycormiform after Euthynotus. It grew up to 1 m (3.5 ft) in length. The teeth are short and designed for grasping. Its ecology has been interpreted as that of a generalist predator.
Bobbichthys is an extinct genus of ray-finned fish that lived in what is now Chile during the Oxfordian stage of the Late Jurassic epoch.
Tibetodus is an extinct genus of prehistoric ray-finned fish that lived during the Late Jurassic epoch.
Daedalichthys is an extinct genus of prehistoric ray finned, bony fish that lived during the Early Triassic epoch.
Strongylosteus is an extinct genus of prehistoric ray-finned fish that lived during the early Toarcian age of the Early Jurassic epoch. Its type species is Strongylosteus hindenburgi (monotypy). It is related to modern sturgeon and paddlefish (Acipenseroidei), but with a different kind of mouth than common species, made for hunting prey in open waters, with a strong lower jaw, similar to modern beluga sturgeon.
Leptolepides is an extinct genus of prehistoric ray-finned fish that lived during the early Tithonian stage of the Late Jurassic epoch.
Austropleuropholis is an extinct genus of ray-finned fish that lived during the early Toarcian stage of the Early Jurassic epoch. It contains a single species, A. lombardi, from the Democratic Republic of the Congo.
Ainia is an extinct genus of prehistoric ray-finned fish that lived during the early Toarcian stage of the Early Jurassic epoch.
Habroichthys is an extinct genus of prehistoric bony fish that lived during the early Ladinian stage of the Middle Triassic epoch, 242 to 232 million years ago. It has been found in Austria, China, Italy, Slovenia, and Switzerland. It was a small fish measuring 26 cm (10 in) long.
Asthenocormus is an extinct genus of large marine pachycormiform ray-finned fish. It contains a single species, A. titanius. A member of the edentulous suspension feeding clade within the Pachycormiformes, fossils have been found in the Upper Jurassic plattenkalks of Bavaria, Germany.
Acentrophorus is an extinct genus of prehistoric 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.
Anaethalion is an extinct genus of prehistoric marine and freshwater ray-finned fish related to modern tarpons and ladyfish. It is known from the Late Jurassic to the Early Cretaceous of Europe and northeasterrn Asia, roughly encompassing the Tethys Ocean.
Ascalabos is an extinct genus of marine ray-finned fish known from the Late Jurassic Solnhofen Limestone of Germany. It contains one species, A. voithii. Some authorities synonymize it with Leptolepis.
Proleptolepis is an extinct genus of ray-finned fish belonging to the family Leptolepidae.
Proscinetes is an extinct genus of prehistoric pycnodontiform ray-finned fish from the Jurassic.
Eomesodon is an extinct genus of prehistoric ray-finned fish. It lived during the Late Triassic and Jurassic.
Plesiococcolepis is an extinct genus of prehistoric ray-finned fish. It belongs to the family Coccolepididae and is known from the Early Jurassic of Lingling-Hengyang, Hunan, China.
Pleuropholis is an extinct genus of prehistoric ray-finned fish.
Peipiaosteus is an extinct genus of prehistoric chondrostean ray-finned fish. Its fossils are found in the Early Cretaceous Jiufotang Formation, Pani Lake, Liaoning Province, China.
Morrolepis is an extinct genus of prehistoric coccolepidid "palaeoniscoid" ray-finned fish that lived during the Late Jurassic and earliest Cretaceous epochs in Europe, Asia and North America.
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