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Erpetosuchidae
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; the group might also include '' Dyoplax arenaceus'' from the Late Triassic of Germany, '' Archeopelta arborensis'' and '' 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 plates (osteoderms) extended from the neck to the tail, supplemented by an additional row on the back and tail and small oval-shaped osteoderms on the legs and possibly the arms as well. The osteoderms were unusually sculptured by deep pits and ranged in shape and thickness ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parringtonia
''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] |
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 ... [...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] |
Tarjadia
''Tarjadia'' is an Extinction, extinct genus of Erpetosuchidae, 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 Crurotarsi, 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'' i ... [...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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dyoplax
''Dyoplax'' is an extinct genus of pseudosuchian archosaur, possibly an Erpetosuchidae, erpetosuchid. Fossils have been found from the Type locality (biology), type locality within the upper Schilfsandstein Formation in Stuttgart, Germany. The holotype specimen was a Cast fossil, 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 Gharial, 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 Erpetosuchidae, erpetosuchid in 1966, but was later classified as one of the e ... [...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 ''archa ... [...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 Ca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Erpetosuchus BW
''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 Ca ... [...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 Ca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Middle Triassic
In the geologic timescale, the Middle Triassic is the second of three epochs of the Triassic period or the middle of three series in which the Triassic system is divided in chronostratigraphy. The Middle Triassic spans the time between Ma and Ma (million years ago). It is preceded by the Early Triassic Epoch and followed by the Late Triassic Epoch. The Middle Triassic is divided into the Anisian and Ladinian ages or stages. Formerly the middle series in the Triassic was also known as Muschelkalk. This name is now only used for a specific unit of rock strata with approximately Middle Triassic age, found in western Europe. Middle Triassic fauna Following the Permian–Triassic extinction event, the most devastating of all mass-extinctions, life recovered slowly. In the Middle Triassic, many groups of organisms reached higher diversity again, such as the marine reptiles (e.g. ichthyosaurs, sauropterygians, thallatosaurs), ray-finned fish and many invertebrate groups like ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Argentina
Argentina (), officially the Argentine Republic ( es, link=no, República Argentina), is a country in the southern half of South America. Argentina covers an area of , making it the second-largest country in South America after Brazil, the fourth-largest country in the Americas, and the eighth-largest country in the world. It shares the bulk of the Southern Cone with Chile to the west, and is also bordered by Bolivia and Paraguay to the north, Brazil to the northeast, Uruguay and the South Atlantic Ocean to the east, and the Drake Passage to the south. Argentina is a federal state subdivided into twenty-three provinces, and one autonomous city, which is the federal capital and largest city of the nation, Buenos Aires. The provinces and the capital have their own constitutions, but exist under a federal system. Argentina claims sovereignty over the Falkland Islands, South Georgia and the South Sandwich Islands, and a part of Antarctica. The earliest recorded human prese ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
