WAntarctilamna is an extinct genus of Devonian shark originally exemplified by Antarctilamna prisca from South Eastern Australia and Antarctica. The latest occurring described species is Antarctilamna ultima from the Waterloo Farm lagerstätte in South Africa. Antarctilamna has robust ctenacanthid-like spines which lack a deep insertion area, and are borne in front of the first dorsal fin; in addition to distinctive diplodont teeth with small intermediate cusps. Antarctilamna-like spines, known from the Bunga Beds locality in Australia have been ascribed to A. Prisca.
WAustralosomus is an extinct genus of prehistoric ray-finned fish that lived during the Early Triassic epoch.
WBobasatrania is an extinct genus of prehistoric bony fish that survived the Permian-Triassic extinction event. Fossils of Bobasatrania were found in beds of Lopingian to Anisian age. It was most speciose during the Early Triassic. The genus was named after the locality Bobasatrana in northeast Madagascar, from where the type species was described.
WBrychaetus is an extinct genus of prehistoric bony tongue fish known from the Late Cretaceous to the Paleocene. It contains a single species, Brychaetus muelleri. Its fossils have been found in Europe, North America, and northern Africa. This freshwater fish had very long teeth which are half bone and half enamel. It's thought to be related to the modern day Arowana although the presence of a sclerotic ossicle in the fossil record would suggest that they were a deep water fish unlike modern day Arowanas which are surface feeders.
WCalamopleurus is an extinct genus of bowfins, comprising three species: C. cylindricus and C. mawsoni from Brazil and C. africanus from Africa.
WCallipurbeckia is an extinct genus of neopterygian ray-finned fish from the Jurassic and Cretaceous periods. Fossils have been found in Germany, Tanzania, and England. It contains three species, which were previously classified in the related genus Lepidotes.
WCharitopsis is an extinct genus of prehistoric bony fish that lived during the lower Cenomanian.
WCoelodus is an extinct genus of pycnodontiform fish from the Late Jurassic to early Paleocene (Danian). Fossils of the genus have been found in:JurassicGardies, FranceCretaceousYacoraite Formation, Argentina El Molino Formation, Bolivia Baharîje Formation, Egypt Ahlen and Bückeberg Formations, Germany Nimar Formation, India Alburni, Italy Damergou, Zinder, Niger Cochirleni Formation, Romania La Huérguina and Cabana Formations, Spain Pierre Shale, Kansas Tunbridge Wells Sand Formation, England Tucumcari Formation, New Mexico Twin Mountains and Paluxy Formations, TexasPaleoceneTremp Formation, Spain
WDastilbe is an extinct genus of prehistoric bony fish from the Aptian.
WDipteronotus is an extinct genus of prehistoric ray-finned fish.
WEurypholis is a genus of prehistoric ray-finned fish.
WEusthenodon is an extinct genus of prehistoric tristichopterids from the Late Devonian period, ranging between 383 and 359 million years ago. They are well known for being a cosmopolitan genus with remains being recovered from East Greenland, Australia, Central Russia, South Africa, and Belgium. Compared to the other closely related genera of the Tristichopteridae clade, Eusthenodon was one of the largest lobe-finned fishes and among the most derived tristichopterids alongside its close relatives Cabonnichthys and Mandageria.
WExocoetoides is a genus of prehistoric ray-finned fish.
WGoulmimichthys is an extinct genus of ray-finned fishes in the order Elopiformes. The genus, first described by Cavin in 1995, is known from various Turonian age formations. The type species G. arambourgi from the Akrabou Formation in the El Rachidia Province of Morocco, and other fossils described are G. gasparini of the La Frontera Formation, Colombia, and G. roberti from the Agua Nueva Formation of Mexico.
WGyracanthus is an extinct genus of acanthodian.
WHybodus is an extinct genus of Chondrichthyans. First appearing towards the end of the Permian period, and disappearing during the Late Cretaceous, during the Triassic, Jurassic, and Cretaceous periods the hybodonts were especially successful and could be found in shallow seas across the world. For reasons that are not fully understood, the hybodonts became extinct near the end of the Late Cretaceous period.
WMawsonia is an extinct genus of prehistoric coelacanth fish, and the largest of this group, ranging from an estimated 3.5 metres up to 6.3 metres long. It lived during the Cretaceous period. Fossils have been found in the Bahia Group, Romualdo, Alcântara and Missão Velha Formations of Brazil, South America, as well as the Continental Intercalaire of Algeria and Tunisia, the Ain el Guettar Formation of Tunisia, and the Babouri Figuil Basin of Cameroon, Africa. Mawsonia was first described by British palaeontology Arthur Smith Woodward in 1907. The type species is Mawsonia gigas, named and described in 1907. Numerous distinct species have been described since then. M. brasiliensis, M. libyca, M. minor, and M. ubangiensis have all been proposed to be synonyms of M. gigas, although Léo Fragoso's 2014 thesis on mawsoniids finds M. brasiliensis valid and cautions against synonymizing M. minor without further examination. Several recent publications consider M. brasiliensis to be valid as well. Although initially considered to belong to this genus, "Mawsonia" lavocati is most likely referable to Axelrodichthys instead.
WThe moonfish of the genus Mene, the sole extant genus of the family Menidae, are disk-shaped fish which bear a vague resemblance to gourami, thanks to their thread-like pelvic fins. Today, the genus is represented only by Mene maculata of the Indo-Pacific, where it is a popular food fish, especially in the Philippines, where it is known as bilong-bilong, chabita, hiwas or tahas.
WOnchopristis is a genus of extinct giant sclerorhynchoid from the Lower Cretaceous to Upper Cretaceous of North America, North Africa, Brazil, and New Zealand. It had an elongated snout lined laterally with barbed "teeth", or denticles.
WOnchosaurus is an extinct genus of sclerorhynchid sawfish from the Late Cretaceous. Its fossils have been found in the Cretaceous sediments of Egypt, Morocco, France, Niger, Peru and the United States.
WOtodus is an extinct genus of mackerel shark which lived from the Paleocene to the Miocene epoch. The name Otodus comes from Ancient Greek ὠτ and ὀδούς – thus, "ear-shaped tooth".
WOtodus auriculatus is an extinct species of large sharks in the genus Otodus of the family Otodontidae, closely related to the sharks of the genus Otodus, and also closely related to the later species megalodon. Its teeth were large, having coarse serrations on the cutting edge, and also with two large cusplets. The teeth can reach up to 130 millimetres (5.1 in), and belonged to a large "megatoothed" shark.
WOtodus chubutensis, meaning "ear-shaped tooth of Chubut", from Ancient Greek ὠτ and ὀδούς – thus, "ear-shaped tooth", is an extinct species of prehistoric megatoothed sharks in the genus Otodus, that lived during Oligocene, Miocene, and Pliocene epochs, approximately 28 – 5 million years ago. This shark is considered to be a close relative of the famous prehistoric megatoothed shark, O. megalodon. However, as is the case with O. megalodon, the classification of this species is disputed.
WPalaeocarcharodon, also known as the pygmy white shark, is a genus of shark within the family Otodontidae that lived about 61.7 to 55.8 Ma during the Paleocene. It currently contains a sole species P. orientalis.
WPerleidus is an extinct genus of ray-finned fish from the Triassic period. Fossils have been found worldwide.
WPrionolepis is a genus of prehistoric ray-finned fish belonging to the order Alepisauriformes.
WPristis lathami is a species of extinct sawfish in the family Pristidae. It lived in the Eocene era, in areas in Egypt, Nigeria, Togo, the United Kingdom, the United States, and Western Sahara, in marine areas, estuaries, bays, open shallow subtidal areas, coastal, marginal marine areas, deep waters, offshore, and fluvial-deltaic areas. P. lathami has 53 occurrences, with 1 being found in Egypt with a rostal tooth about 10 cm in length.
WPromissum is an extinct genus of conodonts, primitive chordates, that lived during the Upper Ordovician period.
WPtychoceratodus is an extinct genus of prehistoric sarcopterygians or lobe-finned fish originally named as a species of Ceratodus in 1837. It was a lungfish from the Mesozoic era (Triassic-Cretaceous), and the only members of the family Ptychoceratodontidae. One species, P. oldhami, was named in 2018 based on remains from the Carnian-aged Tiki Formation (India). The first named species, which is also the type species, is P. phillipsi, which was named in 1837 by Louis Agassiz as a species of Ceratodus and moved to a separate genus in 1926.
WRhombodus is a prehistoric genus of ray belonging to the family Rhombodontidae.
WSaurichthys is an extinct genus of predatory ray-finned fish from the Triassic period. It is the name giving genus of the family Saurichthyidae. This family also includes the Permian Eosaurichthys (China) and the Jurassic Saurorhynchus from Europe and North America.
WSorbinichthys is an extinct genus of clupeomorph bony fish from the Cenomanian of Lebanon and Morocco.
WStriatolamia is an extinct genus of sharks belonging to the family Odontaspididae. These extinct sharks lived from the Early Paleocene to Late Miocene.
WXiphiorhynchus is an extinct genus of prehistoric swordfish that lived from the Eocene until the Miocene. Unlike the modern swordfish, both the upper and lower jaws of Xiphiorhynchus were extended into blade-like points.