Toarcian dinosaurs

Piatnitzkysaurus ( ; meaning "Piatnitzky's lizard") is a genus of tetanuran theropod dinosaur that lived approximately 179 to 177 million years ago during the lower part of the Jurassic Period in what is now Argentina. Piatnitzkysaurus was a moderately large, lightly built, bipedal, ground-dwelling carnivore that could grow over long.

Patagosaurus (meaning "Patagonia lizard") is an extinct genus of eusauropod dinosaur from the middle Toarcian of Patagonia, Argentina. It was first found in deposits of the Cañadón Asfalto Formation, which date to around 178 million years ago. Although originally twelve specimens were assigned to the taxon, at least one of them may belong to a different genus. Patagosaurus probably lived alongside genera such as Piatnitzkysaurus, Condorraptor, and Volkheimeria.

Emausaurus is a genus of thyreophoran or armored dinosaur from the Early Jurassic (Early Toarcian). Its fossils have been found in the Lehmhagen Member, in Mecklenburg-Vorpommern, northern Germany. Emausaurus is the only known Toarcian thyreophoran, as well as the only dinosaur from the zone of the same age with a formal name.

Zizhongosaurus (meaning "Zizhong lizard") is a genus of basal herbivorous sauropod dinosaur which lived in the Early Jurassic (Toarcian) Period of China. It was a large-bodied herbivore characterized by a long neck.

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.

Eoabelisaurus () is a genus of abelisauroid theropod dinosaur from the Lower Jurassic Cañadón Asfalto Formation of the Cañadón Asfalto Basin in Argentina, South America. The generic name combines a Greek ἠώς, (eos), "dawn", with the name Abelisaurus, in reference to the fact it represents an early relative of the latter. Only one species is currently recognized, E. mefi; the specific name honours the MEF, the Museo Paleontológico "Egidio Feruglio", where discoverer Diego Pol is active. It is characterized by reduced forelimb proportions that show primitive characteristics of the Abelisauridae

Condorraptor is an extinct genus of megalosauroid theropod dinosaur. Its genus name means 'robber from Cerro Condor', referencing a nearby village, while its species name, currumili, is named after Hipolito Currumil, the landowner and discoverer of the locality. It was among the earliest large South American theropods, having been found in Lower Jurassic strata of the Cañadón Asfalto Formation in the Cañadón Asfalto Basin of Argentina. The type species, described in 2005, is Condorraptor currumili. It is based on a tibia, with an associated partial skeleton that may belong to the same individu

Amygdalodon (; "almond tooth" for its almond shaped teeth) is an extinct genus of basal sauropod from the Early Jurassic of Argentina. The type species is Amygdalodon patagonicus. Fossils of Amygdalodon have been found in the Toarcian-aged Cerro Carnerero Formation (about 180-172 million years ago). Very little is known about it, but it is one of the few Jurassic dinosaurs from South America found thus far.

Ohmdenosaurus () is a genus of sauropod dinosaur that lived during the Early Jurassic epoch in what is now Germany. The only specimen – a tibia (shinbone) and ankle – was discovered in rocks of the Posidonia Shale near the village of Ohmden. The specimen, which was originally identified as a plesiosaur, is exhibited in a local museum, the Urweltmuseum Hauff. In the 1970s, it caught the attention of German palaeontologist Rupert Wild, who recognised it as the remains of a sauropod. Wild named Ohmdenosaurus in a 1978 publication; the only known species is Ohmdenosaurus liasicus.

Berberosaurus (meaning "Berber lizard", in reference to the Berbers of Morocco) is a genus of neotheropod dinosaur, possibly a ceratosaur, from the Toarcian-age (Lower Jurassic) "Toundoute Continental Series" (Azilal Formation) found in the Central High Atlas of Toundoute, Ouarzazate, Morocco. The type species of the genus Berberosaurus is B. liassicus, in reference to the Lias epoch. Berberosaurus might be the oldest known ceratosaur, and is based on partial postcranial remains. This genus represents the oldest formally identified theropod from the North of Africa, as well one of the few from

Manidens is an extinct genus of heterodontosaurid dinosaur from the Early Jurassic of Patagonia. It is a sister taxon of the closely related Pegomastax from South Africa. Fossils have been found in the Cañadón Asfalto Formation in Chubut Province, Argentina, considered to be originally dated to the Bajocian, latter were found to be from Toarcian beds.

Tazoudasaurus is a genus of gravisaurian (probably vulcanodontid) sauropod dinosaurs from the late Early Jurassic (Toarcian). It was recovered in the "Toundoute Continental Series" (Azilal Formation), located in the High Atlas Mountains of Morocco in North Africa. Along with Patagosaurus, Volkheimeria, Bagualia, and Perijasaurus (perhaps Barapasaurus and Kotasaurus as well), it represents one of the few sauropods named from this stage on Gondwana, as well as the only one from Africa.

Volkheimeria is an extinct genus of sauropod dinosaurs that lived in what is now Argentina during the Early Jurassic, about 179–178 million years ago. Its type and only species is Volkheimeria chubutensis.

Asfaltovenator (meaning "Cañadón Asfalto Formation hunter" after the fossil formation in which its fossils were found) is a genus of possibly allosauroid dinosaur from the Lower Jurassic (Middle Toarcian) Cañadón Asfalto Formation of Chubut Province, Argentina. The type and only species is Asfaltovenator vialidadi.

Sanxiasaurus (meaning "Sanxia lizard", after the Three Gorges, Chinese Sanxia, of the Yangtze River) is a genus of neornithischian dinosaur from the Middle Jurassic Xintiangou Formation in the Chongqing Municipality of China. The type and only species is S. modaoxiensis. The holotype is a partial postcranial skeleton consisting of 55 bones including two cervical vertebrae, 11 dorsal vertebrae, 4 sacral vertebrae, 18 caudal vertebrae, both humeri, radii, and ulnas, partial right ilium, partial right ischium, both femora and tibiae, left fibula, 3 metatarsi and 4 phalanges. In a phylogenetic ana

Dandakosaurus (meaning "Dandakaranya lizard") is a dubious genus of theropod dinosaur from the Kota Formation, Andhra Pradesh, India. It lived 183 to 175 million years ago from the latest Pliensbachian to the late Toarcian stages of the Early Jurassic. Little is known about the genus, and some paleontologists consider it to be a nomen dubium.

Bagualia (meaning "wild horse") is an extinct genus of eusauropod dinosaur from the Early Jurassic (middle Toarcian) Cañadón Asfalto Formation in what is now the Chubut Province of Argentina. The type species, B. alba, was formally described in 2020. Bagualia represents the oldest known definitive eusauropod, and due to the completeness of its material, it represents one of the most important taxa for understanding the early evolution of the group.

Perijasaurus (meaning "Perija lizard") is a genus of basal eusauropod sauropod dinosaur from the "Girón-type redbeds" of the La Quinta Formation of Cesar Department, north-eastern Colombia. The type species is Perijasaurus lapaz. It lived during the Toarcian-Aalenian boundary around 175 million years ago (early to middle Jurassic period).

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).