Sinemurian dinosaurs

Lesothosaurus is a monospecific genus of ornithischian dinosaur that lived during the Early Jurassic in what is now South Africa and Lesotho. It was named by paleontologist Peter Galton in 1978, the name meaning "lizard from Lesotho". The genus has only one valid species, Lesothosaurus diagnosticus. Lesothosaurus is one of the most completely-known early ornithischians, based on numerous skull and postcranial fossils from the Upper Elliot Formation. It had a simpler tooth and jaw anatomy than later ornithischians, and may have been omnivorous in some parts of the year.

Scelidosaurus (; with the intended meaning of "limb lizard", from Greek / meaning 'rib of beef' and sauros/ meaning 'lizard') is a genus of herbivorous armoured ornithischian dinosaur from the Jurassic of England.

Scutellosaurus ( ) is a genus of basal thyreophoran dinosaur that lived approximately 196 million years ago during the early part of the Jurassic Period in what is now Arizona, USA. It is classified in Thyreophora, the armoured dinosaurs; its closest relatives may have been Emausaurus and Scelidosaurus, another armored dinosaur which was mainly a quadrupedal dinosaur, unlike bipedal Scutellosaurus. It is one of the earliest representatives of the armored dinosaurs and the basalmost form discovered to date. Scutellosaurus was a small, lightly-built, ground-dwelling herbivore, that could grow up

Vulcanodon (meaning "volcano tooth") is an extinct genus of sauropod dinosaur from the Early Jurassic uppermost Forest Sandstone of southern Africa. The only known species is V. karibaensis. Discovered in 1969 in Zimbabwe, it was regarded as the earliest known sauropod for decades, and is still one of the most primitive genera that has been discovered.

Abrictosaurus (; "wakeful lizard") is a genus of heterodontosaurid dinosaur that lived during the Early Jurassic in what is now in parts of southern Africa such as Lesotho and South Africa. It was a bipedal herbivore or omnivore and was one of the most basal heterodontosaurids. It was approximately long and weighed less than .

Mussaurus (meaning "mouse lizard") is a genus of herbivorous sauropodomorph dinosaur that lived in southern Argentina during the Sinemurian stage of the Early Jurassic. It receives its name from the small size of the skeletons of juvenile and infant individuals, which were once the only known specimens of the genus. However, since Mussaurus is now known from adult specimens, the name is something of a misnomer.

Megapnosaurus (meaning "big dead lizard", from Greek μέγα = "big", ἄπνοος = "not breathing", "dead", σαῦρος = "lizard") is an extinct genus of coelophysid theropod dinosaur that lived approximately 188 million years ago during the early part of the Jurassic Period in what is now Africa. The species was a small to medium-sized, lightly built, ground-dwelling, bipedal carnivore, that could grow up to long and weigh up to .

Lufengosaurus (, meaning "Lufeng lizard") is a genus of massospondylid dinosaur which lived during the Early Jurassic period in what is now southwestern China.

Sinosaurus (meaning "Chinese lizard") is an extinct genus of basal theropod dinosaur which lived during the Early Jurassic (Hettangian-Sinemurian). Fossils of the animal have been found in the Lufeng Formation, in the Yunnan Province of China. The type species, S. triassicus, was named by Chung Chieng Young in 1940. A second species, S. sinensis, was originally assigned to Dilophosaurus, but was later reassigned to Sinosaurus. Sinosaurus is morphologically similar to Dilophosaurus including the presence of a similarly shaped cranial crest, though its precise taxonomic position is uncertain, an

Sarcosaurus () is a genus of basal neotheropod dinosaur, roughly long. It lived in what is now England and maybe Ireland and Scotland during the Hettangian-Sinemurian stages of the Early Jurassic, about 199-196 million years ago. Sarcosaurus is one of the earliest known Jurassic theropods, and one of only a handful of theropod genera from this time period. Along with Dracoraptor hanigani it is one of the two described neotheropods from the lowermost Jurassic of the United Kingdom.

Fabrosaurus ( ) is a dubious extinct genus of ornithischian dinosaur that lived during the Early Jurassic during the Hettangian to Sinemurian stages (199 - 189 mya).

Pegomastax is a genus of heterodontosaurid dinosaur that lived during the Early Jurassic of South Africa. The only known specimen was discovered in a 1966–1967 expedition in Transkei District of Cape Province, but was not described until 2012 when Paul Sereno named it as the new taxon Pegomastax africana. The genus name is derived from the Greek for "strong jaw", and the species name describes the provenance of Africa; it was originally spelled africanus, was corrected to africana to align with the gender of the genus name.

Yunnanosaurus ( ) is an extinct genus of sauropodomorph dinosaur that lived approximately 199 to 183 million years ago in what is now the Yunnan Province, in China, for which it was named. Yunnanosaurus was a large sized, moderately-built, ground-dwelling, quadrupedal herbivore, that could also walk bipedally, and ranged in size from 7 meters (23 feet) long and 2 m (6.5 ft) high to 4 m (13 ft) high in the largest species.

Jingshanosaurus (meaning "Jingshan lizard") is a genus of sauropodomorph dinosaurs from the early Jurassic period (201.4 to 196.5 million years ago, Hettangian age) of China. The type and only species is Jingshanosaurus xinwaensis. Its maximum weight was around with an adult femur length of . The genus grew up to long.

Lycorhinus is a genus of heterodontosaurid ornithischian dinosaur from the Early Jurassic (Hettangian to Sinemurian ages) strata of the Elliot Formation located in the Cape Province, South Africa.

Eshanosaurus is a genus of a dinosaur from the early Jurassic Period. It is known only from a fossil partial lower jawbone, found in China. It may be a therizinosaurian, and if so the earliest known coelurosaur.

Lamplughsaura is an extinct genus of sauropodomorph dinosaur from the Sinemurian-aged (Early Jurassic) Dharmaram Formation of India. The genus contains a single species, Lamplughsaura dharmaramensis, known from several partial skeletons of a large quadrupedal animal up to long. It has been classified as either a basal sauropod or more basal sauropodomorph.

Yuxisaurus () is an extinct genus of early thyreophoran dinosaur from the Early Jurassic (Sinemurian-Toarcian) Fengjiahe Formation of southwestern China. The genus contains a single species, Yuxisaurus kopchicki, known from a partial skeleton and many osteoderms.

Gyposaurus (meaning "vulture lizard", referring to the outdated hypothesis that prosauropods were carnivores) is a genus of basal sauropodomorph dinosaur from the early Jurassic of South Africa. It is usually considered to represent juveniles of other prosauropods, but "G." sinensis is regarded as a possibly valid species.

Saltriovenator (meaning "Saltrio hunter") is a genus of ceratosaurian dinosaur that lived during the Sinemurian stage of the Early Jurassic in what is now Italy. The type and only species is Saltriovenator zanellai; in the past, the species had been known under the informal name "saltriosaur". Although a full skeleton has not yet been discovered, Saltriovenator is thought to have been a large, bipedal carnivore similar to Ceratosaurus.

Gongxianosaurus is a genus of basal sauropod dinosaur from the early Jurassic Period (Sinemurian-Pliensbachian stage). The only species is Gongxianosaurus shibeiensis. Based on four fragmentary to complete specimens found in the Ziliujing Formation, China (Sichuan Province), it is one of the most completely known early sauropods. The skeleton is known in large part, missing both the hand and the majority of the skull. Gongxianosaurus was firstly named and described in a short note published in 1998; however, a comprehensive description has yet to be published. Gongxianosaurus shibeiensis was n

Tatisaurus is a genus of ornithischian dinosaur from the Early Jurassic from the Lower Lufeng Formation in Yunnan Province in China. Little is known as the remains are fragmentary. The type species is T. oehleri.

Podokesaurus is a genus of coelophysoid dinosaur that lived in what is now the eastern United States during the Early Jurassic Period. The first fossil was discovered by the geologist Mignon Talbot near Mount Holyoke, Massachusetts, in 1910. The specimen was fragmentary, preserving much of the body, limbs, and tail. In 1911, Talbot described and named the new genus and species Podokesaurus holyokensis based on it. The full name can be translated as "swift-footed lizard of Holyoke". This discovery made Talbot the first woman to find and describe a non-bird dinosaur. The holotype fossil was reco

Chuxiongosaurus (meaning "Chuxiong lizard") is a genus of basal sauropodomorph dinosaur which lived during the Early Jurassic Period. Fossils of this genus have been found in the Lower Lufeng Formation, Yunnan Province, southern China. Identified from the holotype CMY LT9401 a nearly complete skull (including a lower jaw) with some similarities to Thecodontosaurus, it was described as the "first basal sauropod dinosaur from the Early Jurassic of China," more basal than Anchisaurus. It was named by Lü Junchang, Yoshitsugu Kobayashi, Li Tianguang and Zhong Shimin in 2010, and the type species is

Pradhania (named after Dhuiya Pradhan, a fossil collector at the Indian Statistical Institute) is a genus of massospondylid sauropodomorph dinosaur from the Sinemurian-age (Early Jurassic) Upper Dharmaram Formation of India. It was first named by T. S. Kutty, Sankar Chatterjee, Peter M. Galton and Paul Upchurch in 2007 and the type species is Pradhania gracilis. It was a sauropodomorph of modest size, only about four meters (13 ft) long, and is known from fragmentary remains. It was originally regarded as a basal sauropodomorph but new cladistic analysis performed by Novas et al., 2011 su

Xixiposaurus (meaning "Xixipo lizard") is a genus of "prosauropod" dinosaur which existed in what is now Lower Lufeng Formation, China during the lower Jurassic period. It was first named by Sekiya Toru in 2010 and the type species is X. suni.

Ledumahadi (meaning "giant thunderclap" in Sesotho language) is a genus of lessemsaurid sauropodomorph dinosaur from the Early Jurassic Elliot Formation in Free State Province, South Africa. The type and only species is L. mafube, known from a singular incomplete postcranial specimen. A quadruped, it was one of the first giant sauropodomorphs, reaching a weight of around , despite not having evolved columnar limbs like its later huge relatives.

Bienosaurus (meaning "Boien's lizard) is a dubious genus of thyreophoran dinosaur from the Early Jurassic (probably Hettangian to Sinemurian) Lower Lufeng Formation of Yunnan Province in China.

Sarahsaurus is a genus of basal sauropodomorph dinosaur which lived during the Early Jurassic period in what is now northeastern Arizona, United States.

Dornraptor (meaning "Dorset robber or thief") is an extinct genus of averostran theropod dinosaur from the Early Jurassic (Late Sinemurian) of Charmouth, Dorset, England. The genus contains a single species, D. normani, known from a fragmentary knee joint and femur that were initially described by Sir Richard Owen as belonging to the early armored dinosaur Scelidosaurus. Dornraptor lived in what is now England, along other theropods like Dracoraptor and Sarcosaurus.

Aetonyx is a dubious genus of sauropodomorph dinosaur from the Early Jurassic of southern Africa. Its only species is A. palustris, which was named by Robert Broom in 1911 based on a fragmentary skeleton from the upper Elliot Formation found near Fouriesburg, Free State Province. Broom considered it as a species of "carnivorous dinosaur". In 1924, Sydney H. Haughton assigned a second specimen to Aetonyx, which is also from Fouriesburg. In 1932, Friedrich von Huene suggested that the species Thecodontosaurus dubius, which Haughton had named in his 1924 paper, is a synonym of Aetonyx palustris.

Yizhousaurus (meaning "Yizhou lizard", after the Chuxiong Yi Autonomous Region) is a genus of basal sauropodiform dinosaurs which existed in what is now Lufeng Formation, Yunnan Province of southern China during the lower Jurassic period. Identified from a nearly complete and exquisitely preserved skeleton, it is the most complete basal sauropod currently known with intact skull. Although its name was revealed in a 2010 Geological Society of America abstract by Sankar Chatterjee, T. Wang, S.G. Pan, Z. Dong, X.C. Wu, and Paul Upchurch, it wasn't validly named and described until 2018. The type

Pulanesaura is an extinct genus of basal sauropodiform known from the Early Jurassic (late Hettangian to Sinemurian) Upper Elliot Formation of the Free State, South Africa. It contains a single species, Pulanesaura eocollum, known from partial remains of at least two subadult to adult individuals.

Gryponyx (meaning "hooked-claw") is an extinct genus of massopod sauropodomorph known from southern Free State, central South Africa.

Wudingloong is an extinct genus of massopodan sauropodomorph dinosaurs known from the Early Jurassic Yubacun Formation of China. The genus contains a single species, Wudingloong wui, known from a partial skeleton including the skull.

extinct species of dinosaur

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

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.