| Egertonia | |
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| Genus: | Egertonia |
Egertonia is an extinct genus of prehistoric bony fish. [1] The earliest occurrences of the genus in the fossil record are from the Late Cretaceous of Madagascar and India. [2]
Tharrhias is an extinct genus of prehistoric bony fish that lived during the Aptian stage of the Early Cretaceous epoch. The type species T. araripis is named after the Araripe Basin, in which it was found in sediments of the Santana Formation.
Chanopsis is an extinct genus of prehistoric bony fish that lived during the Aptian stage of the Early Cretaceous epoch.
Spathiurus is an extinct genus of prehistoric ray-finned fish that lived during the Cenomanian in the Sannine Formation of Lebanon.
Oshunia is an extinct genus of prehistoric bony fish that lived during the Albian. Fossils of the genus were found in the Romualdo Formation of the Araripe Basin, northeastern Brazil. Other authors assign a Cenomanian age to the fish.
Macrepistius is an extinct genus of prehistoric ray-finned fish that lived during the Albian stage of the Early Cretaceous epoch.
Casierius is an extinct genus of prehistoric bony fish that lived during the Albian stage of the Early Cretaceous epoch. It is one of the oldest eels. The fossils of this animal were found in Glen Rose Formation near, Hood County, Texas.
Acrotemnus is an extinct genus of prehistoric ray-finned fish that lived during the Late Cretaceous epoch.The genus has single species Acrotemnus faba.
Prymnetes is an extinct genus of prehistoric bony fish that lived during the Late Cretaceous epoch.
Polygyrodus is an extinct genus of prehistoric ray-finned fish that lived during the Late Cretaceous epoch. The name is a combination of the Greek words poly (many), gyro (round), and odoy (tooth).
Ostariostoma is an extinct genus of prehistoric bony fish that lived during the Late Cretaceous epoch.
Stromerichthys is an extinct genus of prehistoric ray-finned fish that lived during the Late Cretaceous epoch.
Mesoclupea showchangensis is an extinct ichthyodectiform ray-finned fish that lived in freshwater environments in what is now China during the Early Cretaceous epoch. It differs from its sister genus, Chuhsiungichthys, primarily by having a more posteriorly-placed dorsal fin.
Pseudoegertonia is an extinct genus of prehistoric bony fish that lived during the Maastrichtian age of the Cretaceous period and Danian age of the Paleocene epoch.
Amiopsis is an extinct genus of prehistoric bony fish belonging to the family Amiidae. Fossils are known from the Late Jurassic Solnhofen Limestone, Germany, the Early Cretaceous Purbeck Group, England, La Pedrera de Rúbies Formation, Spain and Bernnissant Iguanodon locality, Belgium and the Late Cretaceous (Cenomanian) of the Balkans. The monophyly of the genus is questionable, due to it being based on a single character, "the presence of three or more lateral fossae on each side of most abdominal centra". Remains previously assigned to this genus from the Early Cretaceous Las Hoyas, Spain have been moved into the new genus Hispanamia.
Athrodon is an extinct genus of pycnodontid that lived in shallow seas in what is now England and France from the Late Jurassic until the genus' extinction during the start of the late Cretaceous. The various species are very similar in splenial bone and tooth morphology to Mesodon. Otherwise, no articulated or complete specimen is known: all fossil specimens are bone fragments and disarticulated teeth.
Cylindracanthus is an extinct genus of Cretaceous to Eocene aged ray-finned fish. It is almost exclusively known from bony rostrum fragments as well as some associated teeth, with the rest of the skeleton being cartilaginous. While originally considered to be closely related to billfish, the structure of its rostrum is dissimilar, and is unlikely to be closely related, some later studies suggested closer affinities to the Acipenseriformes. However, this was later rejected due to the lack of osteocytes in histologically examined specimens, which resembles the condition of derived teleosts. A close relation to Blochius has been suggested.
Notogoneus is an extinct genus of prehistoric ray-finned fish. A trace fossil attributed to Notogoneus osculus has been found in the Green River Formation.
Osmeroides is an extinct genus of prehistoric ray-finned fish from the Cretaceous.
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.
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