Triassic bony fish

Coelacanthidae is an extinct family of coelacanths found in freshwater and marine strata throughout the world, originating during the Permian, and finally dying out during the Jurassic.

Mawsoniidae is an extinct family of prehistoric coelacanth fishes which lived during the Triassic to Cretaceous periods. Members of the family are distinguished from their sister group, the Latimeriidae (which contains the living coelacanths of the genus Latimeria) by the presence of ossified ribs, a coarse rugose texture on the dermatocranium and cheek bones, the absence of the suboperculum and the spiracular, and reduction or loss of the descending process of the supratemporal.

thumb|left|Saurichthys curionii fossil from the Middle Triassic of [[Monte San Giorgio, Switzerland]] thumb|left|Early Triassic and [[Middle Triassic marine predators: 3. Saurichthys]]

Dapedium (from , 'pavement') is an genus of deep-bodied ray-finned fish belonging to the extinct family Dapediidae. Dapedium lived in the Late Triassic to the Middle Jurassic period, from the late Norian to the early Aalenian, being one of the most abundant fossil fish found in Early Jurassic deposits in Europe.

thumb|left|Early Triassic and [[Middle Triassic marine predators: 4. Rebellatrix]]

Semionotus (from , 'mark' and , 'back') is an extinct genus of ray-finned fish found throughout Northern Pangaea (North America and Europe) during the late Triassic, becoming extinct in the Early Jurassic. thumb|left|Fossil slab of S. kapffi mass mortality thumb|left|Reconstruction of a generalized individual

genus of fishes (fossil)

Birgeria is a genus of carnivorous marine ray-finned fish from the Triassic period. Birgeria had a global distribution, with fossil known from Madagascar, Spitsbergen, Germany, Switzerland, Italy, Slovenia, China, Russia, Canada and Nevada, United States. The oldest fossils are from Griesbachian aged beds of the Wordie Creek Formation of East Greenland. Birgeria existed throughout the entire Triassic period, from the very beginning just after the Permian-Triassic mass extinction, up to the very end with its extinction during the Triassic-Jurassic mass extinction.

Pholidophorus (from , 'horny scale' and , 'to bear') is an extinct genus of stem-teleost fish. Numerous species were assigned to this genus in the past, but only the type species Pholidophorus latiusculus, from the Late Triassic of Europe, is considered to be a valid member of the genus today.

Ferganoceratodus (from Fergana + Ceratodus) is a genus of prehistoric freshwater lungfish known from worldwide during the Mesozoic. Based on morphological evidence, it has either been recovered as a basal member of the Ceratodontiformes or to be the sister group of the Neoceratodontidae (containing the extant Australian lungfish).

Diplurus is a genus of prehistoric mawsoniid coelacanth fish which lived during the Late Triassic-Early Jurassic period in North America. The fossils of this genus are common on the eastern North American Margin, being a key taxon of the Newark Supergroup, and recovered from units such as the Bull Run Formation (Norian, Virginia), Lockatong Formation (Norian, Pennsylvania), Stockton Formation (Norian, New Jersey), Solite Quarry (Norian, North Carolina-Virginia), Midland Formation (Hettangian, Virginia), East Berlin Formation (Hettangian, Connecticut), Boonton Formation (Sinemurian, New Jersey)

Foreyia is an extinct genus of coelacanth lobe-finned fish which lived during the Middle Triassic period in what is now Canton of Graubünden, Switzerland. It contains a single species F. maxkuhni.

Whiteia is an extinct genus of prehistoric coelacanth fish which lived during the Triassic period. It is named after Errol White.

Chinlea is an extinct genus of late Triassic Mawsoniid coelacanth fish found in and named after the Chinle Formation that crops out in the southwestern states of Arizona and New Mexico.  The word “Chinle” comes from the Navajo word meaning "flowing out", referencing the location where water flows out of the Canyon de Chelly. They were also possibly found in the Dockum Group.

Gabanellia is an extinct genus of marine ray-finned fish from the Late Triassic of Italy. It contains a single species, G. agilis, from the Norian-aged Calcare di Zorzino formation.

thumb|left|Marine life of the Early Triassic|Early and early [[Middle Triassic: Ticinepomis (13)]] Ticinepomis is an extinct genus of coelacanth lobe-finned fish which lived during the Middle Triassic period in what is now Switzerland. It contains two species, T. peyeri and T. ducanensis.

Potanichthys is a fossil genus of thoracopterid fish found in deposits from China dating to the Ladinian age of the Middle Triassic epoch. The type species is P. xingyiensis, though P. wushaensis is considered as the alternative species name. It is known to have been the first vertebrate ever to have glided over water, and thus the first fish ever that had over-water gliding strategy. The genus name Potanichthys is a portmanteau of the Ancient Greek ποτάνος (potanos, winged/flying) and ιχθύς (ichthys, fish). The species epithet refers to Xingyi city which is near the site where Potanichthys wa

Arganodus is an extinct genus of freshwater lungfish that had a wide global distribution throughout much of the Triassic period, with a single species surviving across Gondwana into the Cretaceous. It is the only member of the family Arganodontidae, although it is sometimes placed in the Ceratodontidae or synonymized with the genus Asiatoceratodus.

Dicellopyge is an extinct genus of freshwater ray-finned fish that lived during the early Anisian age of the Middle Triassic epoch in what is now South Africa. It was originally named "Dicellopygae" by James Brough but the name was later corrected to Dicellopyge by Peter Hutchinson.

Heterolepidotus is an extinct genus of prehistoric ray-finned fish.

Gyrolepis is an extinct genus of prehistoric ray-finned fish from the Middle-Late Triassic epochs in what is now Europe. It is known both from complete specimens and isolated skeletal elements, such as scales or teeth. thumb|left|Isolated teeth and scales ascribed to Gyrolepis

Aetheodontus is an extinct genus of prehistoric marine bony fish that lived during the early Ladinian stage of the Middle Triassic epoch of what is now Italy and Switzerland. It contains a single species, A. besanensis.

Whiteiidae is an extinct family of prehistoric coelacanth fishes which lived during the Triassic period. Torino, Soto, and Perea (2021) did not support this clade as it was not found to be monophyletic in their analysis, however, Ferrante and Cavin (2025) found the family to be a valid clade.

Perleidiformes are an extinct order of prehistoric ray-finned fish from the Triassic period Although numerous Triassic taxa have been referred to Perleidiformes, which ones should be included for it to form a monophyletic group is a matter of ongoing scientific debate. thumb|Chaohuperleidus primus, one of the earliest perleidids

Australosomus (meaning "southern body") 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 (British Columbia). thumb|left|Australosomus merlei fossil

Bobasatrania is an extinct genus of prehistoric marine ray-finned fish that survived the Permian-Triassic extinction event. Fossils of Bobasatrania were found in beds of Changhsingian (late Permian) to Ladinian (Middle Triassic) age. It was most speciose during the Early Triassic.

Perleidus is an extinct genus of ray-finned fish from the Triassic period. Fossils have been found in the Middle Triassic of Italy, Switzerland, and China. The inclusion of Early Triassic species in the genus Perleidus was questioned.

Cleithrolepis is an extinct genus of freshwater ray-finned fish that lived from the Induan age (Early Triassic epoch) to the Anisian (Middle Triassic) in what is now Australia (New South Wales, Tasmania) and Libya. A species from Late Triassic Germany, C. brueckneri, was also ascribed to Cleithrolepis.

Laugiidae is an extinct family of prehistoric marine coelacanths which lived during the Triassic and Jurassic periods. Their fossils have been found in Canada, Germany and Greenland.

Brembodus is an extinct marine pycnodontid fish, the type genus of the family Brembodontidae. It contains a single species, B. ridens, known from the Late Triassic Calcare di Zorzino formation of Cene, Italy.

Piveteauia is an extinct genus of prehistoric coelacanth fish which lived during the Lower Triassic period. The type specimen was discovered in the Middle Sakamena Group in northwestern Madagascar by French paleoichthyologist Jean-Pierre Lehman. The genus is named after Jean Piveteau.

thumb|right|The Triassic [[Saurichthys was a highly specialized predator]] thumb|right|Saurichthys|Costasaurichthys paucitrichus fossil thumb|right|Saurichthys|Saurichthys curionii fossil thumb|right|Fossil of the Jurassic saurichthyid Saurorhynchus brevirostris thumb|right|Morphological comparison of Saurichthyidae with extant needlefish and flying fish. A. Sinosaurichthys|Sinosaurichthys longipectoralis; B. Sinosaurichthys longimedialis; C. Sinosaurichthys minuta; D. Saurichthys dawaziensis from Middle Triassic of Dawazi Section, Luoping, Yunnan, China (based on Wu et al. 2009). E. Atlantic