Triassic England

Ichthyotitan ( ) is an extinct genus of giant ichthyosaur from the Late Triassic (Rhaetian), known from the Westbury Mudstone Formation in Somerset, England. It is believed to be a shastasaurid, extending the family's range by years up to the latest Triassic. The discovery of Ichthyotitan has been considered evidence that shastasaurids were still thriving until their disappearance in the Triassic–Jurassic extinction event.

left|thumb|upright|Skull reconstruction thumb|upright|Size of Kuehneosaurus (orange, right( compared to fellow kuehneosaurids Kuehneosuchus and [[Icarosaurus, as well as to other unrelated extinct gliding reptiles and Draco volans, a living gliding lizard.]] Kuehneosaurus is an extinct genus of Late Triassic kuehneosaurid reptile known from the Late Triassic (Norian stage) of the Penarth Group of southwest England and the Steinmergel Group of Luxembourg. Temperature at this stage and region would have ranged from 28 to 35 °C. It was named by Pamela Lamplugh Robinson in 1962 in honour of p

Stagonolepis is an extinct genus of stagonolepidid aetosaur known from the Late Triassic (Carnian stage) Hassberge Formation of Germany, the Drawno Beds of Poland, and the Lossiemouth Sandstone of Scotland. Supposed fossils from North and South America have been placed into their own genera, Calyptosuchus and Aetosauroides, respectively.

Terrestrisuchus is an extinct genus of very small early crocodylomorph that was about long. Fossils have been found in Wales and Southern England and date from near the very end of the Late Triassic during the Rhaetian, and it is known by type and only known species T. gracilis. Terrestrisuchus was a long-legged, active predator that lived entirely on land, unlike modern crocodilians. It inhabited a chain of tropical, low-lying islands that made up southern Britain, along with similarly small-sized dinosaurs and abundant rhynchocephalians. Numerous fossils of Terrestrisuchus are known from fis

Eozostrodon is an extinct morganucodont mammaliaform. It lived during the Rhaetian stage of the Late Triassic. Eozostrodon is known from disarticulated teeth from South West England and estimated to have been less than in head-body length, slightly smaller than the similar-proportioned Megazostrodon.

Atychodracon is an extinct genus of rhomaleosaurid plesiosaurian known from the Late Triassic - Early Jurassic boundary (probably early Hettangian stage) of England. It contains a single species, Atychodracon megacephalus, named in 1846 originally as a species of Plesiosaurus. The holotype of "P." megacephalus was destroyed during a World War II air raid in 1940 and was later replaced with a neotype. The species had a very unstable taxonomic history, being referred to four different genera by various authors until a new genus name was created for it in 2015. Apart from the destroyed holotype a

Kuehneosuchus is an extinct genus of Late Triassic kuehneosaurid reptile known from the Late Triassic (Norian stage) of southwest England. It was named by Pamela Lamplugh Robinson in 1967 and the type and only species is Kuehneosuchus latissimus. It is known from the holotype NHMUK PV R 6111, a set of associated vertebrae and ribs. It is a derived kuehneosaurid, most closely related to Kuehneosaurus. The genera can be distinguished from one another primarily on the length of their elongate ribs, relatively short and massive in Kuehneosaurus but up to 4 times longer and more gracile in Kue

Theroteinus is an extinct genus of haramiyidan mammaliaforms from the Late Triassic of France and Britain. It contains three species: T. nikolai, T. rosieriensis and T. jenkinsi, the former two of which are known exclusively from teeth found at the sand quarry of Saint-Nicolas-de-Port, while T. jenkinsi is known from a bedded sequence belonging to the Westbury Formation in a road cutting near Holwell, Dorset. Theroteinus is the only member of the family Theroteinidae and the suborder Theroteinida.