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Erpetosuchid
Erpetosuchidae is an extinct family of pseudosuchian archosaurs. Erpetosuchidae was named by D. M. S. Watson in 1917 to include ''Erpetosuchus''. It includes the type species '' Erpetosuchus granti'' from the Late Triassic of Scotland, ''Erpetosuchus'' sp. from the Late Triassic of eastern United States and '' Parringtonia gracilis'' from the middle Middle Triassic of Tanzania Tanzania (; ), officially the United Republic of Tanzania ( sw, Jamhuri ya Muungano wa Tanzania), is a country in East Africa within the African Great Lakes region. It borders Uganda to the north; Kenya to the northeast; Comoro Islands ...; the group might also include ''Dyoplax, Dyoplax arenaceus'' from the Late Triassic of Germany, ''Archeopelta arborensis'' and ''Pagosvenator, Pagosvenator candelariensis'' from Brazil and ''Tarjadia ruthae'' from Argentina. Description General features Erpetosuchids were lithe but well-armored carnivorous pseudosuchians. Two rows of overlapping armored p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parringtonia
''Parringtonia'' is an extinct genus of Triassic archosaur within the family (biology), family Erpetosuchidae, known from the type species ''Parringtonia gracilis''. It is known from a single specimen, Natural History Museum, London, NHMUK R8646, found from the Anisian-age Manda Formation of Tanzania. This specimen, like most archosaur material from the Manda Formation, is fragmentary, including only a maxilla and a few postcranial bones. They show similarities with those of another archosaur called ''Erpetosuchus'', known from the Middle Triassic of Scotland and the eastern United States. The phylogenetic placement of ''Parringtonia'' and ''Erpetosuchus'' are uncertain; some studies placed them close to the group Crocodylomorpha, which includes all modern crocodylians and many extinct forms that diversified after the Triassic, but this relationship has more recently been questioned. Description NHMUK R8646 consists of a right maxilla or upper jaw bone, a left scapula or shoulder ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parringtonia Gracilis
''Parringtonia'' is an extinct genus of Triassic archosaur within the family Erpetosuchidae, known from the type species ''Parringtonia gracilis''. It is known from a single specimen, NHMUK R8646, found from the Anisian-age Manda Formation of Tanzania. This specimen, like most archosaur material from the Manda Formation, is fragmentary, including only a maxilla and a few postcranial bones. They show similarities with those of another archosaur called '' Erpetosuchus'', known from the Middle Triassic of Scotland and the eastern United States. The phylogenetic placement of ''Parringtonia'' and ''Erpetosuchus'' are uncertain; some studies placed them close to the group Crocodylomorpha, which includes all modern crocodylians and many extinct forms that diversified after the Triassic, but this relationship has more recently been questioned. Description NHMUK R8646 consists of a right maxilla or upper jaw bone, a left scapula or shoulder blade, part of what might be the ischium bone of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pagosvenator
''Pagosvenator'' is an extinct genus of erpetosuchid from the Mid-Late Triassic ''Dinodontosaurus'' Assemblage Zone of the Santa Maria Supergroup of Brazil. The type species, ''Pagosvenator candelariensis'', was described in 2018. ''Pagosvenator'' is a Brazilian genus which has been allied with the ornithosuchids prior to receiving a formal description in 2018. Despite only being known from a skull and a few vertebrae and osteoderms, which were anonymously donated to the Candelária Museum in 2015, it shares similarities with several erpetosuchids. Although its description only compared it with '' Erpetosuchus'' and ''Parringtonia ''Parringtonia'' is an extinct genus of Triassic archosaur within the family (biology), family Erpetosuchidae, known from the type species ''Parringtonia gracilis''. It is known from a single specimen, Natural History Museum, London, NHMUK R8646, ...'', its assignment to this family does have some support. It shares a few traits with these other g ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tarjadia Ruthae
''Tarjadia'' is an extinct genus of erpetosuchid pseudosuchian, distantly related to modern crocodilians. It is known from a single species, ''T. ruthae'', first described in 1998 from the Middle Triassic Chañares Formation in Argentina. Partial remains have been found from deposits that are Anisian-Ladinian in age. Long known mostly from osteoderms, vertebrae, and fragments of the skull, specimens described in 2017 provided much more anatomical details and showed that it was a fairly large predator. ''Tarjadia'' predates known species of aetosaurs and phytosaurs, two Late Triassic groups of crurotarsans with heavy plating, making it one of the first heavily armored archosaurs. Prior to 2017, most studies placed it outside Archosauria as a member of Doswelliidae, a family of heavily armored and crocodile-like archosauriforms. The 2017 specimens instead show that it belonged to the Erpetosuchidae. Etymology The genus name ''Tarjadia'' is derived from Sierra de los Tarjados ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dyoplax
''Dyoplax'' is an extinct genus of pseudosuchian archosaur, possibly an erpetosuchid. Fossils have been found from the type locality within the upper Schilfsandstein Formation in Stuttgart, Germany. The holotype specimen was a natural cast of a nearly complete skeleton that lacked only parts of the tail and limb bones. Classification Oscar Fraas, the original describer of ''Dyoplax,'' described the specimen as having "the head of a lizard and the armor of a gavial". When the taxon Pseudosuchia was first proposed in 1890, ''Dyoplax'' was considered one of the three genera within the clade, and was included within the family " Aetosauridae". Several other papers published in later years have also placed the genus within Pseudosuchia. In 1956 the genus was referred to Notochampsidae, now known as Protosuchidae. It was suggested to be a possible erpetosuchid in 1966, but was later classified as one of the earliest protosuchids in 1994. In that same year a paper was published t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Archeopelta Arborensis
''Archeopelta'' is an extinct genus of carnivorous archosaur from the late Middle or early Late Triassic period (late Ladinian to early Carnian stage). It was a 2 m (6 ft) long predator which lived in what is now southern Brazil. Its exact phylogenetic placement within Archosauriformes is uncertain; it was originally classified as a doswelliid, but subsequently it was argued to be an erpetosuchid archosaur. Discovery It is only known from the holotype CPEZ-239a, which consists of partial skeleton (including vertebrae, partial right front and hind limbs, a partial hip, and an undetermined bone which may be part of a tibia) and braincase. It was found in the Santa Maria 1 Sequence, previously known as the Santa Maria Formation, in Chiniquá region, São Pedro do Sul of Rio Grande do Sul State. It was first named by Julia B. Desojo, Martín D. Ezcurra and César L. Schultz in 2011 and the type species is ''Archeopelta arborensis''. The generic name comes from ''ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tarjadia
''Tarjadia'' is an extinct genus of erpetosuchid pseudosuchian, distantly related to modern crocodilians. It is known from a single species, ''T. ruthae'', first described in 1998 from the Middle Triassic Chañares Formation in Argentina. Partial remains have been found from deposits that are Anisian- Ladinian in age. Long known mostly from osteoderms, vertebrae, and fragments of the skull, specimens described in 2017 provided much more anatomical details and showed that it was a fairly large predator. ''Tarjadia'' predates known species of aetosaurs and phytosaurs, two Late Triassic groups of crurotarsans with heavy plating, making it one of the first heavily armored archosaurs. Prior to 2017, most studies placed it outside Archosauria as a member of Doswelliidae, a family of heavily armored and crocodile-like archosauriforms. The 2017 specimens instead show that it belonged to the Erpetosuchidae. Etymology The genus name ''Tarjadia'' is derived from Sierra de ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Archeopelta
''Archeopelta'' is an extinct genus of carnivorous archosaur from the late Middle or early Late Triassic period (late Ladinian to early Carnian stage). It was a 2 m (6 ft) long predator which lived in what is now southern Brazil. Its exact phylogenetic placement within Archosauriformes is uncertain; it was originally classified as a doswelliid, but subsequently it was argued to be an erpetosuchid archosaur. Discovery It is only known from the holotype CPEZ-239a, which consists of partial skeleton (including vertebrae, partial right front and hind limbs, a partial hip, and an undetermined bone which may be part of a tibia) and braincase. It was found in the Santa Maria 1 Sequence, previously known as the Santa Maria Formation, in Chiniquá region, São Pedro do Sul of Rio Grande do Sul State. It was first named by Julia B. Desojo, Martín D. Ezcurra and César L. Schultz in 2011 and the type species is ''Archeopelta arborensis''. The generic name comes from ''ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Erpetosuchus
''Erpetosuchus'' is an extinct genus of pseudosuchian from the Late Triassic. The type species of ''Erpetosuchus'' is ''E. granti''. It was first described by E. T. Newton in 1894 for remains found in northeastern Scotland, including four specimens from the latest Carnian Lossiemouth Sandstone Formation. Additional remains of ''Erpetosuchus'' have been found in the New Haven Formation of Connecticut in the eastern United States, although they were not attributed to the species ''E. granti''. The relationship of ''Erpetosuchus'' to other archosaurs is uncertain. In 2000 and 2002, it was considered a close relative of the group Crocodylomorpha, which includes living crocodylians and many extinct relatives. However, this relationship was questioned in a 2012 analysis that found the phylogenetic placement of ''Erpetosuchus'' to be very uncertain. Material The first remains of ''Erpetosuchus'' were found in the Lossiemouth Sandstone Formation in Scotland, dating back to the late ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pseudosuchia
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". Prior to 2011, the clade Pseudosuchia was often called Crurotarsi in reference to the crurotarsal ankle found in almost all members of the group, which traditionally included phytosaurs, ornithosuchids, and suchians. However, a major 2011 study of Triassic archosaur relations proposed that phytosaurs were not closely related to other traditional "crurotarsans", at least compared to "bird-line archosaurs" (Avemetatarsalians) such as pterosaurs and dinosaurs. As a result, the possession of a crurotarsal ankle was considered a plesiomorphic ("primitive") feature retained by pseudosuchians. Crurotarsi now refers to a broader group of reptiles including Pseudosuchia, Phytosauria, and Avemetatarsalia. Despite Pseudosuchia meaning "false crocodiles", ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Erpetosuchus Granti
''Erpetosuchus'' is an extinct genus of pseudosuchian from the Late Triassic. The type species of ''Erpetosuchus'' is ''E. granti''. It was first described by E. T. Newton in 1894 for remains found in northeastern Scotland, including four specimens from the latest Carnian Lossiemouth Sandstone Formation. Additional remains of ''Erpetosuchus'' have been found in the New Haven Formation of Connecticut in the eastern United States, although they were not attributed to the species ''E. granti''. The relationship of ''Erpetosuchus'' to other archosaurs is uncertain. In 2000 and 2002, it was considered a close relative of the group Crocodylomorpha, which includes living crocodylians and many extinct relatives. However, this relationship was questioned in a 2012 analysis that found the phylogenetic placement of ''Erpetosuchus'' to be very uncertain. Material The first remains of ''Erpetosuchus'' were found in the Lossiemouth Sandstone Formation in Scotland, dating back to the late ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
