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| Angistorhinopsis | |
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| Genus: | Angistorhinopsis (Huene, 1922) |
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Angistorhinopsis is an extinct genus of altirostral (long-snouted) mystriosuchin phytosaur. It was named for its supposed resemblance to Angistorhinus by Friedrich von Huene in 1922. Fossils have been found in Switzerland and date back to the latest Norian and Rhaetian stages of the Late Triassic, making it the youngest known phytosaur to have existed in Europe and, along with Redondasaurus from the United States, one of the last surviving members of Phytosauria before the group became extinct during the Triassic–Jurassic extinction event 199.6 million years ago.
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| | This article about a prehistoric archosaur is a stub. You can help Wikipedia by expanding it. |
| | This article about a Triassic reptile is a stub. You can help Wikipedia by expanding it. |
Phytosaurs are an extinct group of large, mostly semiaquatic Late Triassic archosauriform reptiles. Phytosaurs belong to the order Phytosauria. Phytosauria and Phytosauridae are often considered to be equivalent groupings containing the same species, but some studies have identified non-phytosaurid phytosaurians. Phytosaurs were long-snouted and heavily armoured, bearing a remarkable resemblance to modern crocodilians in size, appearance, and lifestyle, as an example of convergence or parallel evolution. The name "phytosaur" means "plant reptile", as the first fossils of phytosaurs were mistakenly thought to belong to plant eaters.
Belodon is a genus of phytosaur, a crocodile-like reptile that lived during the Triassic. Its fossils have been found in Europe and elsewhere. The type species, Belodon plieningeri, was named by prolific German paleontologist Christian Erich Hermann von Meyer in 1844.
Centemodon is an extinct genus of basal phytosaur from the Late Triassic Period. It lived in what is now Pennsylvania, United States. It is classified as a nomen dubium. It was found in the Red Sandstone Formation near the Schuyklill River. Centemodon may have been related to Suchoprion. It was a small phytosaur, weighing no more than 200 kilograms (440 lb) when fully grown.
Pseudosuchia is one of two major divisions of Archosauria, including living crocodilians and all archosaurs more closely related to crocodilians than to birds. Pseudosuchians are also informally known as "crocodilian-line archosaurs". Despite Pseudosuchia meaning "false crocodiles", the name is a misnomer as true crocodilians are now defined as a subset of the group.
Palaeoctonus is an extinct genus of archosaur known only from isolated teeth. The name is derived from Greek. The genus is believed to have flourished during the Upper (Late) Triassic period.
Rutiodon is an extinct genus of mystriosuchine phytosaurs from the Late Triassic of the eastern United States. The type species of Rutiodon, Rutiodon carolinensis, encompasses a large number of skulls and assorted postcranial fossils discovered in the Cumnock Formation of North Carolina. Fossils referable to the species are also known from Pennsylvania, New Jersey, and Virginia. Rutiodon carolinensis is the most well-described species of phytosaur in eastern North America, though its validity as a natural taxon has been questioned. Some paleontologists also recognize a larger and more robust species, Rutiodon manhattanensis, which is known from teeth and postcranial fossils from New Jersey and Pennsylvania.
Nicrosaurus (/nɛkroʊˈsɔrəs/) is an extinct genus of phytosaur reptile existing during the Late Triassic period. Although it looked like a crocodile, it was not closely related to these creatures, instead being an example of parallel evolution. The main difference between Nicrosaurus and modern crocodiles is the position of the nostrils – Nicrosaurus's nostrils, or external nares, were placed directly in front of the forehead, whereas in crocodiles, the nostrils are positioned on the end of the snout. A 2013 study has also found that ilium of Nicrosaurus is quite distinctive from all other phytosaurs.
Redondasaurus is an extinct genus of phytosaur from the Late Triassic of the southwestern United States. It was named by Hunt & Lucas in 1993, and contains two species, R. gregorii and R. bermani. It is the youngest and most evolutionarily-advanced of the phytosaurs.
Angistorhinus is an extinct genus of phytosaur known from the Late Triassic period of Texas and Wyoming, United States. It was first named by Mehl in 1913 and the type species is Angistorhinus grandis. Other species from Texas and Wyoming, A. alticephalus, A. gracilis and A. maximus, are cospecific with the type species. Angistorhinus is known from the holotype UC 631, partial skull and lower jaws recovered from the Popo Agie Formation, Chugwater Group, Wyoming and from the associated paratype UM 531, a partial skull, TMM 31098-1, skull and lower jaws and ROM 7977, partial skull and lower jaws, recovered from the 'Pre-Tecovas Horizon' in the Dockum Group, Texas. A possible second species, A. talainti is known from the Triassic of Morocco. In 1995, Long and Murry created the new combination, Angistorhinus megalodon by synonymy for Brachysuchus. Hungerbühler and Sues (2001) hypothesised that Angistorhinus is a junior synonym of Rutiodon. However, in 2010 Michelle R. Stocker retained the validity of Brachysuchus and of A. grandis.
Mystriosuchus is an extinct genus of phytosaur that lived in the Late Triassic in Europe and Greenland. It was first named by Eberhard Fraas in 1896, and includes four species: M. planirostris, M. westphali, M. steinbergeri, and M. alleroq.
Smilosuchus is an extinct genus of leptosuchomorph parasuchid from the Late Triassic of North America.
Mystriosuchini, historically known as Pseudopalatinae, is an extinct tribe of derived phytosaurs in the clade Leptosuchomorpha. As with all other phytosaurs, mystriosuchins lived during Late Triassic. The name is derived from the genus Mystriosuchus.
Coburgosuchus is an extinct genus of mystriosuchin phytosaur. The genus was named for Coburg, Germany, the type locality where specimens have been found dating back to the Late Triassic. It has at times been considered a nomen dubium due to the fragmentary nature of the material associated with the genus, and it may prove to be synonymous with other phytosaurs such as Nicrosaurus or Phytosaurus.
Leptosuchus is an extinct genus of leptosuchomorph phytosaur with a complex taxonomical history. Fossils have been found from the Dockum Group and lower Chinle Formation outcropping in Texas, New Mexico, and Arizona, USA, and date back to the Carnian stage of the Late Triassic.
Pachysuchus is a dubious extinct genus of basal sauropodomorph dinosaur from the Early Jurassic of China.
Arganarhinus is an extinct genus of phytosaur known from the late Triassic period of Argana Basin in Morocco. It is known from a skull which is housed at the Muséum national d'Histoire naturelle. It was first named as a species of Paleorhinus in 1977b by Jean Michel Dutuit and it was named as a separate genus by Long and Murry in 1995. The type species is the original Paleorhinus magnoculus and the combinatio nova is Arganarhinus magnoculus. Its closest relative was Paleorhinus.
Mesorhinosuchus is an extinct genus of basal phytosaur possibly known from the Early Triassic of Saxony-Anhalt, central-eastern Germany. It was first named by Otto Jaekel in 1910 and the type species is Mesorhinus fraasi. The generic name Mesorhinus was preoccupied by Mesorhinus piramydatus Ameghino, 1885, a macraucheniid mammal, which is now considered to be a junior synonym of Oxyodontherium. Thus, an alternative generic name, Mesorhinosuchus, was proposed by Oskar Kuhn in 1961. The genus is occasionally misspelled as Mesorhinosaurus, while Stocker and Butler (2013) recently misspelled its original generic name as Mesosuchus.
Compsosaurus is an extinct genus of phytosaur, a crocodile-like reptile that lived during the Triassic. Its fossils have been found in North Carolina. The type species, Compsosaurus priscus, was named by American paleontologist Joseph Leidy in 1856, although other sources say 1857. Compsosaurus may have been the same animal as the related Belodon.
Volcanosuchus is an extinct genus of phytosaur from the Late Triassic Tiki Formation in India. The type species is V. statisticae. The phytosaur by the marginal overlapping of the nostrils by the antorbital fenestrae, external nares based on a bulbous and raised dome, the lateral surface of the jugal ornamented by a distinct ridge defined by multiple tubercles and radiating string‐like structures, and distinct ornamentation pattern on the rostrum and the skull’s roof. The species ranged form the late Carnian to the early/middle Norian.
Heteropelta is an extinct genus of archosauriform, possibly a basal archosauriform, basal phytosaur or a suchian archosaur. It is known from a single species, Heteropelta boboi, which was found in the Middle Triassic Torbiditi d’Aupa Formation in Italy. The holotype is listed as specimen MFSN 46485 and was collected after 2006.