Dinosaur genera

Iyuku (meaning "hatchling", pronounced "eye-yoo-koo") is a genus of iguanodontian dinosaur from the Early Cretaceous Kirkwood Formation of South Africa. The type species is Iyuku raathi.

Tralkasaurus (meaning "thunder lizard") is a genus of abelisaurid dinosaur from the Huincul Formation from Río Negro Province in Argentina. The type and only species is Tralkasaurus cuyi, named in 2020 by Mauricio Cerroni and colleagues based on an incomplete skeleton. A medium-sized abelisaurid, Tralkasaurus exhibits a conflicting blend of characteristics found among the early-diverging abelisauroids with others that characterize the highly specialized clade Brachyrostra, and thus its position within the clade is poorly-resolved.

Thecocoelurus is a genus of theropod dinosaur from the early Cretaceous period of England. Its type specimen was discovered in strata from the Wessex Formation on the Isle of Wight by the Reverend William Fox, and after his death, it, alongside the rest of his collection, became the property of the British Museum of Natural History. The specimen was named in 1888 by Harry Govier Seeley, who assigned it to the genus Thecospondylus . In 1901, it was reassigned by Baron Franz Nopcsa to Coelurus. In 1923, the specimen was removed from either genus by Friedrich von Huene, who assigned it to a genus

Tietasaura (meaning "Tieta lizard") is an extinct genus of elasmarian ornithopod dinosaur from the Early Cretaceous Marfim Formation of Brazil. The genus contains a single species, T. derbyiana, known from a single incomplete femur. Tietasaura is notable for being the first ornithischian dinosaur ever named from Brazil.

Stegosaurides (meaning "Stegosaurus-shaped") is a genus of herbivorous thyreophoran (perhaps ankylosaurid or possibly stegosaurian) dinosaur. It lived during the Cretaceous. Its fossils were found in the Xinminbao Group near Heishan in Gansu Province in China. These fossils consist of fragmentary material, including dermal spine elements. The genus is occasionally misspelled as "Stegosauroides".

Huayracursor () is an extinct genus of early sauropodomorph dinosaurs known from the Late Triassic (Carnian age) Santo Domingo Formation of Argentina. The genus contains a single species, Huayracursor jaguensis, known from a partial articulated skeleton.

Khulsanurus (meaning "tail from Khulsan") is an extinct genus of alvarezsaurid theropod dinosaur from the Late Cretaceous Baruungoyot Formation of the Khulsan Locality in the Gobi Desert region of Mongolia. The type and only species is Khulsanurus magnificus.

Narindasaurus (meaning "Narinda Bay lizard") is a genus of turiasaurian sauropod dinosaur from the Middle Jurassic Isalo III Formation of Madagascar. The type and only species is Narindasaurus thevenini. The only known specimen of the genus was first described in 1907, but it was not formally named as a distinct species until 2020.

Brontotholus () is an extinct genus of pachycephalosaurid dinosaur known from the Late Cretaceous (Campanian stage) Two Medicine and Oldman formations of Montana, United States, and Alberta, Canada, respectively. The genus contains a single species, Brontotholus harmoni, known from multiple partial domes.

Marmarospondylus ("marble [reference to the Forest Marble Formation] vertebra") is a dubious genus of sauropod dinosaur from Middle Jurassic deposits in the English Midlands.

Liaoningotitan (meaning "Liaoning giant") is a genus of titanosauriform sauropod from the Early Cretaceous (Barremian) Yixian Formation in Liaoning, China. A redescription of the holotype proposed affinities of Liaoningotitan with the Euhelopodidae.

Ruixinia is an extinct genus of somphospondylan sauropod dinosaur from the Early Cretaceous (Barremian) Yixian Formation of China. The genus contains a single species, Ruixinia zhangi, known from a partial articulated skeleton. This specimen preserves the most complete series of caudal vertebrae known from any Asian titanosauriform.

Caieiria (named after the Caieira locality where its fossils were recovered) is a genus of titanosaurian dinosaur from the Late Cretaceous Serra da Galga Formation (formerly a unit of the Marília Formation) of Brazil. The type and only species is Caieiria allocaudata.

Astigmasaura is an extinct genus of rebbachisaurid sauropod dinosaurs from the Late Cretaceous Huincul Formation of Argentina. The genus contains a single species, Astigmasaura genuflexa, known from an incomplete articulated skeleton.

Gongshuilong () is an extinct genus of saurolophine hadrosaurid dinosaur known from the Late Cretaceous (Maastrichtian age) Lianhe Formation of China. The genus contains a single species, Gongshuilong fanwei, known from a bonebed representing the disarticulated remains of at least two individuals. Gongshuilong is a member of the group Brachylophosaurini within the Hadrosauridae, and it is the second member of this otherwise North American clade, following Wulagasaurus, found in Asia. It is also the first hadrosaurid to be named from fossils found in South China. Gongshuilong is characterized b

Bashunosaurus is a genus of potentially macronarian sauropod dinosaur from the Middle Jurassic Shaximiao Formation of Kaijiang, China. The type and only species is Bashunosaurus kaijiangensis.

Shuangbaisaurus (meaning "Shuangbai reptile") is genus of theropod dinosaur, possibly a junior synonym of Sinosaurus. It lived in the Early Jurassic of Yunnan Province, China, and is represented by a single species, S. anlongbaoensis, known from a partial skull. Like the theropods Dilophosaurus and Sinosaurus, Shuangbaisaurus bore a pair of thin, midline crests on its skull. Unusually, these crests extended backwards over the level of the eyes, which, along with the unusual orientation of the jugal bone, led the describers to name it as a new genus. However, Shuangbaisaurus also possesses a gr

Claorhynchus (meaning "broken beak", as it is based on broken bones from the snout region) is a dubious genus of cerapodan dinosaur with a confusing history behind it. It has been considered to be both a hadrosaurid and a ceratopsid, sometimes the same as Triceratops, with two different assignments as to discovery formation and location, and what bones make up its type remains.

Qunkasaura is a genus of saltasauroid titanosaur dinosaur from the Late Cretaceous (Campanian–Maastrichtian) Lo Hueco site of the Villalba de la Sierra Formation of Spain. The type species is Qunkasaura pintiquiniestra.

Hortalotarsus is a dubious genus of sauropodomorph dinosaur from the Early Jurassic of southern Africa. The only species is H. skirtopodus. Hortalotarsus was described by Harry Seeley in 1894 based on parts of a hind limb discovered in the Clarens Formation near Makhanda, South Africa. Originally, these fossils were part of the larger part of a skeleton, locally known as the , that had been destroyed using gunpowder in an attempt to remove the bones from the encasing slate. In 1906, Robert Broom assigned a second specimen to the species but later gave it a species of its own, Gyposaurus capens

Musankwa is an extinct genus of massopodan sauropodomorph dinosaurs from the Late Triassic (Norian) Pebbly Arkose Formation of Zimbabwe. The genus contains a single species, Musankwa sanyatiensis, known from an incomplete hindlimb. Musankwa represents the fourth dinosaur genus to be named from Zimbabwe.

Nanantius is a genus of extinct enantiornithean avialan ("bird" in the broad sense of the word) known from the Early Cretaceous (Albian, c. 100–112 mya) of Australia.

Yeneen is an extinct genus of titanosaurian sauropod dinosaurs known from the Late Cretaceous (Santonian age) Bajo de la Carpa Formation of Argentina. The genus contains a single species, Yeneen houssayi, known from at least one partial skeleton. Its discovery highlights the diversity of titanosaurs in this formation, which also includes Bonitasaura, Inawentu, Overosaurus, Rinconsaurus, and Traukutitan.

Magnamanus is an extinct genus of herbivorous iguanodontian dinosaur that lived during the Early Cretaceous in what is now Spain in the Golmayo Formation. It contains a single species, Magnamanus soriaensis.

Xingxiulong (meaning "Xingxiu Bridge dragon") is a genus of bipedal massopodan sauropodomorph from the Early Jurassic of China. It contains two species; the type species is X. chengi, described by Wang et al. in 2017 from three specimens, two adults and an immature individual, that collectively constitute a mostly complete skeleton. Adults of this species measured long and tall. A second species, X. yueorum, was described by Chen et al. in 2025 based on a partial articulated postcranial skeleton of an adult individual larger than X. chengi.

Athenar is an extinct genus of dicraeosaurid sauropod dinosaur from the Late Jurassic of Utah, United States. The genus contains a single species, Athenar bermani, which was described by John Whitlock and colleagues in 2025 based on the holotype specimen CM 26552: a and previously ascribed to the genus Diplodocus. The specimen was found in rocks belonging to the Morrison Formation at the Carnegie Quarry at Dinosaur National Monument.

Rhomaleopakhus (meaning "strong forearm") is a genus of mamenchisaurid sauropod dinosaur from the Late Jurassic Kalaza Formation of China. The type and only species is Rhomaleopakhus turpanensis.

Yuzhoulong (meaning "Chongqing dragon", after Yuzhou, an early name for Chongqing) is a genus of macronarian sauropod dinosaur from the Middle Jurassic Shaximiao Formation of Chongqing, China. The type and only species is Yuzhoulong qurenensis.

Fushanosaurus (; meaning "Fushan lizard", after the Fushan Museum where its remains are stored) is a genus of sauropod dinosaur from the Shishugou Formation from Xinjiang Province in China. The type and only species is Fushanosaurus qitaiensis (). It is solely known from the holotype specimen FH000101, a complete right femur.

Pachysuchus is a dubious extinct genus of basal sauropodomorph dinosaur from the Early Jurassic of China.

Manipulonyx is an extinct genus of alvarezsaurid theropod dinosaurs known from the Late Cretaceous (Maastrichtian age) Nemegt Formation of Mongolia. The genus contains a single species, Manipulonyx reshetovi, known from a partial skeleton. This includes the most complete forelimb known from any member of the alvarezsaurid subfamily Parvicursorinae, including all of the proximal bones. Manipulonyx has been interpreted as an ovivore (egg-eater), with unique ossified spikes on the wrist that helped the animal to grasp eggs and an enlarged claw on the functionally-monodactyl hand being used to pun

Pareisactus (from the Greek "pareisaktos", meaning "intruder", referring to being represented as a single element among hundreds of hadrosaurid bones) is a genus of rhabdodontid ornithopod dinosaur from the Late Cretaceous (lower Maastrichtian) Conquès Member of the Tremp Formation in the Southern Pyrenees of Spain. The type and only species is P. evrostos, known only from a single scapula.

Sinocephale (meaning ) is a genus of pachycephalosaurid dinosaur that lived in what is now Inner Mongolia, China, during the Cretaceous period. The genus contains a single species, Sinocephale bexelli, which was originally named as a species of the genus Troodon in 1953, and later transferred to the genus Stegoceras in 1964. After decades of being considered dubious, it was re-evaluated in 2021 and recognised as a valid taxon, being given its own genus, Sinocephale. The original holotype was lost, with modern research conducted using rediscovered plaster casts.

Yantaloong is an extinct genus of eusauropod dinosaur known from the Middle Jurassic Zhanghe Formation of China. The genus contains a single species, Yantaloong lini, known from six presacral vertebrae. Phylogenetic analyses place Yantaloong as a close relative of Jobaria and Lapparentosaurus. In one analysis version, these taxa were placed as the sister taxon to a clade of , forming a broader Turiasauria than recognized previously. If it is a turiasaur, it would be the first one known from East Asia.

Silutitan (meaning "Silk Road giant") is a genus of euhelopodid sauropod dinosaur from the Early Cretaceous Shengjinkou Formation of Xinjiang, China. It contains only the type species, Silutitan sinensis.

Zhuchengtitan (meaning "Zhucheng titan") is a genus of titanosaurian sauropod dinosaur from the Late Cretaceous of Shandong, China. It contains a single species, Z. zangjiazhuangensis, named by Mo Jinyou and colleagues in 2017 from a single humerus. Zhuchengtitan can be identified by the extreme width of the top end of its humerus, as well as the expansion of the deltopectoral crest on its humerus; both of these characteristics indicate that it was likely closely related to Opisthocoelicaudia. However, it differs from the latter by the flatter bottom articulating surface of its humerus. Zhuche

Smitanosaurus (meaning "smith lizard") is a genus of dicraeosaurid sauropod dinosaur from the Late Jurassic of Colorado. The genus contains one species, S. agilis, originally assigned to the defunct genus Morosaurus.

Pilmatueia is a genus of diplodocoid sauropods belonging to the family Dicraeosauridae that lived during the Early Cretaceous in what is now Argentina. Its type and only species is Pilmatueia faundezi. Pilmatueia was probably closely related to other South American dicraeosaurids such as Amargasaurus. Like other dicraeosaurids, Pilmatueia was relatively small for a sauropod. The vertebrae of Pilmatueia were more extensively hollowed out by air sacs than in other dicraeosaurids, which otherwise were characterized by a reduction in the air sac system compared to other sauropods. Pilmatueia dates

Horshamosaurus is a genus of herbivorous ankylosaurian dinosaur from the Barremian stage of the Early Cretaceous of what is now England. The type species is Horshamosaurus rudgwickensis.

Chienkosaurus ("lizard of Jiange County") is a dubious genus of carnivorous theropod dinosaur from the Late Jurassic Kuangyuan Series of China. It was probably related to Szechuanosaurus.

Huangshanlong (meaning "Huangshan dragon") is a genus of mamenchisaurid dinosaurs native to the Anhui province of China. It contains a single species, Huangshanlong anhuiensis, which represents, along with Anhuilong and Wannanosaurus, one of the three dinosaurs found in Anhui province.

Huashanosaurus (meaning "Huashan Mountain lizard") is an extinct genus of eusauropod sauropod dinosaurs known from the Early–Middle Jurassic Wangmen Formation of China. The genus contains a single species, Huashanosaurus qini, known from a fragmentary partial skeleton.

Jiangxititan is an extinct genus of somphospondylan titanosauriform dinosaur from the Late Cretaceous Nanxiong Formation of China. The genus contains a single species, J. ganzhouensis, known from several articulated vertebrae with ribs. Originally described as a titanosaur, Jiangxititan was later suggested to be a non-titanosaurian somphospondylan.

Orosaurus ("mountain lizard") is a dubious genus of basal sauropodomorph dinosaur from the Late Triassic of South Africa, containing a single species, O. capensis.

Utetitan (meaning "Ute giant") is an extinct genus of titanosaurian sauropod dinosaur from the Late Cretaceous of North America. The genus contains a single species, Utetitan zellaguymondeweyae, known from partial skeletons previously assigned to Alamosaurus. Fossils assigned to this species have been found in the North Horn Formation of Utah, and the Black Peaks and Javelina formations of Texas, United States.

Calvarius (meaning "suffering") is an extinct genus of styracosternan ornithopod from the Late Cretaceous (Maastrichtian age) Talarn Formation of Spain. The genus contains a single species, Calvarius rapidus, known from a single . The slender morphology of this bone may indicate Calvarius had a cursorial (adapted to run) ecology, in contrast to its slower-moving relatives.

extinct genus of titanosaurian dinosaurs

Mahuidacursor (meaning "mountain runner", meaning "mountain" in Mapudungun) is a genus of basal ornithopod dinosaur from the Santonian Bajo de la Carpa Formation of the Neuquén Basin in northern Patagonia, Argentina. The type and only species is M. lipanglef.

Cryptarcus is a genus of ceratopsid dinosaur found in the Dinosaur Park Formation of Alberta, dating to the middle Campanian age of the Late Cretaceous.

Ornithotarsus () is a genus of hadrosaurid ornithopod dinosaurs that lived in North America during the Late Cretaceous Period in what is now the Merchantville Formation about 84 million to 78 million years ago.

Yunyangosaurus (meaning "Yunyang County lizard") is a genus of possible megalosauroid dinosaur from the Xintiangou Formation in Chongqing, China. The type and only species is Yunyangosaurus puanensis. The name was first published in the 2019 SVP abstract book by Dai (2019) before it was formally described by Dai et al. (2020).

Fulengia is a dubious genus of basal sauropodomorph dinosaur from the Early Jurassic Lufeng Formation of China. The type species, F. youngi, was described by Carroll and Galton in 1977. It is a nomen dubium and may be the same animal as Lufengosaurus (from which it is anagramized). It was originally thought to be a lizard.

Sektensaurus (meaning "island lizard", sekten meaning "island" in Tehuelche) is a genus of ornithopod dinosaur, possibly an elasmarian, from the Late Cretaceous (Maastrichtian) of Patagonia, Argentina. Its remains were uncovered in the fluvial tuffs of the Lago Colhué Huapí Formation in the Golfo San Jorge Basin. The type and only species is S. sanjuanboscoi. Sektensaurus is the first non-hadrosauroid ornithopod of central Patagonia. The discovery of the genus increases the anatomical knowledge of ornithopods and adds new data on the compositions of dinosaur faunas that lived in Patagonia clos

extinct genus of dinosaurs

Pteropelyx (meaning "winged pelvis") is a dubious genus of Late Cretaceous hadrosaurid dinosaur from the Judith River Formation of Montana, named by Edward Drinker Cope in 1889. Historically, several species were assigned to it, all based on extremely fragmentary remains, but there is no evidence to support these assignments, making the type species, P. grallipes, the only valid species. Most of these other species' remains likely belong to better-known hadrosaurs, such as Lambeosaurus and Gryposaurus. It is probable that the type material of Pteropelyx, a skeleton lacking a skull, is from Cor

Kryptohadros () is an extinct genus of hadrosauroid ornithopod dinosaur known from the Late Cretaceous (Maastrichtian age) Densuș-Ciula Formation of Romania. The genus contains a single species, Kryptohadros kallaiae, known from a partial skull and skeleton. Phylogenetic analyses revealed Kryptohadros is closely related to the coeval Transylvanian Telmatosaurus and the Italian Tethyshadros, together forming a group of southeastearn European-endemic taxa, called the Telmatosauridae. Kryptohadros is the second named non-hadrosaurid hadrosauroid from the Hațeg Basin, following Telmatosaurus, whic

Isasicursor (meaning "Isasi's runner" after Marcelo Pablo Isasi) is an extinct genus of elasmarian ornithopod dinosaurs known from the Late Cretaceous Chorrillo Formation of Santa Cruz Province, Argentina. The genus contains a single species, Isasicursor santacrucensis. It was a contemporary of the titanosaur sauropod Nullotitan, which was described in the same paper.

Ampelognathus (meaning "grapevine jaw") is an extinct genus of possibly rhabdodontomorph ornithopod dinosaurs from the Late Cretaceous (Cenomanian) Lewisville Formation of Texas. The type species is Ampelognathus coheni.

Vitosaura is an extinct genus of abelisaurid theropod dinosaurs known from the Late Cretaceous Los Llanos Formation of Argentina. The genus contains a single species, Vitosaura colozacani, known from a partial skeleton. Alongside Guemesia and the noasaurid Noasaurus, Vitosaura is one of the only Argentinian ceratosaurians found outside of Patagonia.