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Stagonosuchus
''Stagonosuchus'' is an extinct genus of loricatan, or possibly a species of ''Prestosuchus''. Fossils have been found from the Late Triassic Manda Formation in Tanzania that are Anisian in age. Unlike other rauisuchians, which have a prominent ridge on the ilium called the supra- acetabular buttress that overlies the femur, ''Stagonosuchus'' possesses only a slight thickening on the surface of the bone. In ''Stagonosuchus'', the pubis is broad and plate like, while in other genera it is narrower and may have a prominent "foot" like that of some theropod dinosaurs. The centra of the vertebrae are constricted to some extent, though not as much as in other rauisuchians such as ''Saurosuchus''. In the vertebrae, the neural canals (through which the spinal cord would pass) extend into the centra, forming deep concavities. A wide articulation between the hyposphene and hypantrum in successive vertebrae prevented any lateral movement of the spine. A small accessory neural spine proje ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prestosuchus
''Prestosuchus'' (meaning "Prestes crocodile") is an extinct genus of pseudosuchian in the group Loricata, which also includes ''Saurosuchus'' and ''Postosuchus''. It has historically been referred to as a "rauisuchian", and was the defining member of the family Prestosuchidae, though the validity of both of these groups is questionable: Rauisuchia is now considered paraphyletic and Prestosuchidae is polyphyletic in its widest form. History of study ''Prestosuchus chiniquensis'' was first discovered in the Santa Maria Formation at the Paleontological Site Chiniquá, near the city of São Pedro do Sul in 1928 or 1929, by the German paleontologist Friedrich von Huene on a trip to Brazil. Von Huene named the genus in 1938 in honor of Vicentino Prestes de Almeida. This site is located in the geopark of Paleorrota. Munich specimens The first two specimens of ''Prestosuchus'' to be described were found at the Weg Sanga site near the town of Sao Pedro do Sul in Rio Grande do S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Manda Formation
The Manda Formation (also known as the Manda Beds) is a Middle Triassic (Anisian?) or possibly Late Triassic (Carnian?) geologic formation in Tanzania. It preserves fossils of many terrestrial vertebrates from the Triassic, including some of the earliest dinosauromorph archosaurs. The formation is often considered to be Anisian in age according to general tetrapod biochronology hypotheses and correlations to the ''Cynognathus'' Assemblage Zone of South Africa. However, some recent studies cast doubt to this age, suggesting that parts deposits may actually be younger (Carnian) in age. History of study One of the first to study rocks of the Manda Formation was British geologist G. M. Stockley. In 1932, Stockley explored the geology of the Ruhuhu Basin in Tanzania. He called a series of layers dating from the Late Carboniferous to the Middle Triassic the Songea Series and divided it into eight units labelled K1-K8. Stockley was also the first to describe fossils from these rocks, n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arganasuchus
''Arganasuchus'' is an extinct genus of "rauisuchian" (loricatan) archosaur. It is known from a single species, ''Arganasuchus dutuiti''. Fossils of this genus have been found in Upper Triassic rocks of the Argana Basin, Morocco. Though its remains were initially referred to ''Ticinosuchus'' when discovered during the 1970s'','' in 2007 it was identified as a distinct genus with unique features of the pubis and maxilla. ''Arganasuchus'' also had several anatomical details in common with ''Batrachotomus'', ''Fasolasuchus'', and ''Postosuchus,'' though its relations with other loricatans remains unresolved. ''Arganasuchus'' is considered a carnivore due to its large, knife-shaped teeth. Discovery Fossils of ''Arganasuchus'' were first reported by Jean-Michel Dutuit in 1979, who referred a maxilla, dentary, femur, and fibula to ''Ticinosuchus''. These fossils were found in the lower part of unit T5 (the Irohalene Member) of the Timezgadiouine Formation. This geological formation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ticinosuchus
''Ticinosuchus'' is an extinct genus of suchian archosaur from the Middle Triassic (Anisian - Ladinian) of Switzerland and Italy. Description One of only a handful of fossil reptiles that have been found in Switzerland, ''Ticinosuchus'' (meaning "Ticino crocodile" due to its origin from the Swiss canton Ticino) was about long, and its whole body, even the belly, was covered in thick, armoured scutes. These scutes were sometimes considered to have been staggered, alternating between several rows. However, some studies refute this claim, instead purporting that the scutes were aligned in neat rows, with a one-to-one assignment of scutes to vertebrae. The structure of the hips shows that its legs were placed under the body almost vertically. Coupled with the development of a calcaneus and a specialized ankle joint, this would have made ''Ticinosuchus'' a fast runner, unlike most earlier reptiles. ''Ticinosuchus'' is thought to be very close to or possible even the same species ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prestosuchidae
Prestosuchidae (in its widest usage) is a polyphyletic grouping of carnivorous archosaurs that lived during the Triassic. They were large active terrestrial apex predators, ranging from around in length. They succeeded the Erythrosuchidae as the largest archosaurs of their time. While resembling erythrosuchids in size and some features of the skull and skeleton, they were more advanced in their erect posture and crocodile-like ankle, indicating more efficient gait. "Prestosuchids" flourished throughout the whole of the middle, and the early part of the late Triassic, and fossils are so far known from Europe, India, Africa (Tanzania), Argentina, and Paleorrota in Brazil. However, for a long time experts disagree regarding the phylogenetic relationships of the group, what genera should be included, and whether indeed the "Prestosuchidae" constitute a distinct family. In 2011, Prestosuchidae in its broadest definition was determined to be a poorly-diagnosed and obsolete polyphyleti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anisian
In the geologic timescale, the Anisian is the lower stage or earliest age of the Middle Triassic series or epoch and lasted from million years ago until million years ago. The Anisian Age succeeds the Olenekian Age (part of the Lower Triassic Epoch) and precedes the Ladinian Age. Stratigraphic definitions The stage and its name were established by Austrian geologists Wilhelm Heinrich Waagen and Carl Diener in 1895. The name comes from ''Anisus'', the Latin name of the river Enns. The original type locality is at Großreifling in the Austrian state of Styria. The base of the Anisian Stage (also the base of the Middle Triassic series) is sometimes laid at the first appearance of conodont species ''Chiosella timorensis'' in the stratigraphic record. Other stratigraphers prefer to use the base of magnetic chronozone MT1n. There is no accepted global reference profile for the base, but one ( GSSP or golden spike) was proposed at a flank of the mountain Deşli Caira in th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saurosuchus
''Saurosuchus'' (meaning "lizard crocodile") is an extinct genus of large loricatan pseudosuchian archosaur that lived in South America during the Late Triassic period. It was a heavy, ground-dwelling, quadrupedal carnivore, likely being the apex predator in the Ischigualasto Formation. Discovery and naming The holotype, PVL 206, was discovered by Galileo J. Scaglia and Leocadio Soria in 1957, lying in a greenish sandstone on the Cancha de Bochas Member of the Ischigualasto Formation in the Ischigualasto-Villa Unión Basin in northwestern Argentina. It consists of a nearly complete, but deformed skull. ''Saurosuchus'' was formally described and named later in 1959 by Osvaldo. A. Reig. The generic name, ''Saurosuchus'', is derived from the Greek (, meaning lizard) and (, meaning crocodile). The specific name, ''galilei'', is in honour to Galileo J. Scaglia, who unearthed and prepared the holotype. Referred specimens ''Saurosuchus'' is known from numerous specimens coming f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Middle Triassic Reptiles Of Africa
Middle or The Middle may refer to: * Centre (geometry), the point equally distant from the outer limits. Places * Middle (sheading), a subdivision of the Isle of Man * Middle Bay (other) * Middle Brook (other) * Middle Creek (other) * Middle Island (other) * Middle Lake (other) * Middle Mountain, California * Middle Peninsula, Chesapeake Bay, Virginia * Middle Range, a former name of the Xueshan Range on Taiwan Island * Middle River (other) * Middle Rocks, two rocks at the eastern opening of the Straits of Singapore * Middle Sound, a bay in North Carolina * Middle Township (other) * Middle East Music * "Middle" (song), 2015 * "The Middle" (Jimmy Eat World song), 2001 * "The Middle" (Zedd, Maren Morris and Grey song), 2018 *"Middle", a song by Rocket from the Crypt from their 1995 album ''Scream, Dracula, Scream!'' *"The Middle", a song by Demi Lovato from their debut album ''Don't Forget'' *"The Middle", a song b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anisian Life
In the geologic timescale, the Anisian is the lower stage or earliest age of the Middle Triassic series or epoch and lasted from million years ago until million years ago. The Anisian Age succeeds the Olenekian Age (part of the Lower Triassic Epoch) and precedes the Ladinian Age. Stratigraphic definitions The stage and its name were established by Austrian geologists Wilhelm Heinrich Waagen and Carl Diener in 1895. The name comes from ''Anisus'', the Latin name of the river Enns. The original type locality is at Großreifling in the Austrian state of Styria. The base of the Anisian Stage (also the base of the Middle Triassic series) is sometimes laid at the first appearance of conodont species ''Chiosella timorensis'' in the stratigraphic record. Other stratigraphers prefer to use the base of magnetic chronozone MT1n. There is no accepted global reference profile for the base, but one ( GSSP or golden spike) was proposed at a flank of the mountain Deşli Caira in the Romanian ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rauisuchids
Rauisuchidae is a group of large (up to or more) predatory Triassic archosaurs. There is some disagreement over which genera should be included in Rauisuchidae and which should be in the related Prestosuchidae and Poposauridae, and indeed whether these should even be thought of as separate valid families. Rauisuchids occurred throughout much of the Triassic, and may have first occurred in the Early Triassic if some archosaurian taxa such as '' Scythosuchus'' and '' Tsylmosuchus'' are considered to be within the family. An early cladistic analysis of crocodylotarsan (pseudosuchian) archosaurs included '' Lotosaurus'', '' Fasolasuchus'', ''Rauisuchus'', and "the Kupferzell rauisuchid" (later called '' Batrachotomus'') within Rauisuchidae.Parrish JM. 1993. Phylogeny of the Crocodylotarsi, with reference to archosaurian and crurotarsan monophyly. ''Journal of Vertebrate Paleontology'' 13: 287-308. However, a later study found that '' Batrachotomus'' was a more basal pseudosuchian o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fasolasuchus
''Fasolasuchus'' is an extinct genus of loricatan. Fossils have been found in the Los Colorados Formation of the Ischigualasto-Villa Unión Basin in northwestern Argentina that date back to the Norian stage of the Late Triassic, making it one of the last rauisuchians to have existed before the order became extinct at the end of the Triassic. Description It is quite possibly the largest known member of Rauisuchia, with an estimated length of to , even bigger than the prestosuchid '' Saurosuchus'' at in length. This would make ''Fasolasuchus'' the largest terrestrial predator to have ever existed save for large theropods. Like ''Saurosuchus'', it had only a single row of caudal osteoderms, unusual among rauisuchians. It also had a hyposphene-hypantrum articulation that gave the vertebral column extra rigidity. This feature is also seen in several other rauisuchians such as '' Postosuchus'' as well as saurischian dinosaurs. Phylogeny Cladogram after the analysis of Nes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Family (biology)
Family ( la, familia, plural ') is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between order and genus. A family may be divided into subfamilies, which are intermediate ranks between the ranks of family and genus. The official family names are Latin in origin; however, popular names are often used: for example, walnut trees and hickory trees belong to the family Juglandaceae, but that family is commonly referred to as the "walnut family". What belongs to a family—or if a described family should be recognized at all—are proposed and determined by practicing taxonomists. There are no hard rules for describing or recognizing a family, but in plants, they can be characterized on the basis of both vegetative and reproductive features of plant species. Taxonomists often take different positions about descriptions, and there may be no broad consensus across the scientific community for some time. The publishing of new data and opi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
