Chroniosuchia

Uralerpeton is an extinct genus of chroniosuchid reptiliomorph from upper Permian (upper Tatarian age) deposits of Vladimir Region, European Russia. It was first named by V. K. Golubev in 1998, from skull fragments and trunk scutes. The type species is Uralerpeton tverdokhlebovae, it was a large predator with a 50 – 55 cm skull and a total length that probably exceeded 3 m (9.3 ft).

Chroniosuchia is a group of tetrapods that lived from the Middle Permian to Late Triassic in northern Pangaea in what is now Eurasia, including Laos, Kyrgyzstan, China, Germany and Russia. Chroniosuchians are often thought to be reptiliomorphs, but some recent phylogenetic analyses suggest instead that they are stem-tetrapods. They were all rather short limbed with a strong tail and elongated snout, somewhat resembling modern crocodiles. The group is traditionally considered to be a suborder or order of labyrinthodonts. Chroniosuchians likely had ecological niches as riverside predators, and m

Chroniosuchidae is a family of semi-aquatic tetrapods found in sediments from the upper Permian and the upper Triassic periods, most in Russia. They were generally rather large animals, with long jaws similar to those found in modern crocodiles, and probably lived a similar lifestyle as riverside piscivores and ambush predators. Like all chroniosuchians, they bore extensive osteoderm armour on their backs, possibly as protection against terrestrial predators such as the Permian therapsids and the Triassic rauisuchians.

Chroniosuchus (greek for “ancient crocodile”; chronos meaning “time” and suchus meaning “crocodile”) is an extinct genus of chroniosuchid from the upper Permian period. The genus was first named by Vjuschkov in 1957.

thumb|left|Restoration of C. dongusensis Chroniosaurus is an extinct genus of chroniosuchid stegocephalian, often considered a reptiliomorph but possibly a stem-tetrapod, from upper Permian (upper Tatarian age) deposits of Novgorod, Orenburg and Vologda Regions, Russia. It was first named by Tverdokhlebova in 1972 and the type species is Chroniosaurus dongusensis.

Bystrowianidae is a family of chroniosuchian tetrapods from the Permian and Triassic periods.

Bystrowiana is an extinct genus of bystrowianid chroniosuchian from upper Permian deposits of Vladimir Region, Russia and Jiyuan, China. Chroniosuchians are often thought to be reptiliomorphs, but some recent phylogenetic analyses suggest instead that they are stem-tetrapods. The genus is named in honour of the Russian paleontologist Alexey Bystrow. It was first described by Vyushkov in 1957 and the type species is Bystrowiana permira. Two species—B. permira and B. sinica—are known.

Bystrowiella is an extinct genus of bystrowianid chroniosuchians from upper Middle Triassic (Ladinian age) deposits of Kupferzell and Vellberg, northern Baden-Württemberg, Germany.

Suchonica is an extinct genus of chroniosuchid reptiliomorph from upper Permian (upper Tatarian age) deposits of Sukhona Formation of Vologda Region, Russia. It was first named by V. K. Golubev in 1999, from the anterior armor scute (PIN, no. 4611/1). The type species is Suchonica vladimiri.

Madygenerpeton is an extinct genus of chroniosuchid reptiliomorph from the Late Triassic Madygen Formation of Kyrgyzstan. It was first named by paleontologists Rainer R. Schoch, Sebastian Voigt and Michael Buchwitz in 2010 from a nearly complete skull and associated osteoderms. The type species is M. pustulatus.

Laosuchus is an extinct genus of chroniosuchian known from the Permian-Triassic boundary of Asia. Two species have been named.

Jarilinus is an extinct genus of chroniosuchid reptiliomorph from upper Permian (upper Tatarian age) deposits of Novgorod and Orenburg Region, Russia. It was first named by V. K. Golubev in 1998, from skull fragments and trunk scutes. The type species is Jarilinus mirabilis.