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Arganasaurus
''Arganasaurus'' is an extinct genus of prehistoric temnospondyl amphibian belonging to the family Metoposauridae that lived in Morocco during the Late Triassic (Carnian). Taxonomy The type species of ''Arganasaurus'', ''A. lyazidi'', was originally described as ''Metoposaurus lyazidi'' by Dutuit (1976) on the basis of skulls found in the Argana Formation of northern Morocco. Hunt (1993) found the species generically distinct from the ''Metoposaurus'' type species to warrant its own genus, which he named ''Arganasaurus''. The nominal species ''"Metoposaurus" azerouali'' Dutuit, 1976, treated as a ''nomen dubium'' by Hunt (1993), was referred to ''Arganasaurus'' by Buffa ''et al.'' (2019).Valentin Buffa; Nour‐Eddine Jalil; J.‐Sebastien Steyer (2019). "Redescription of ''Arganasaurus (Metoposaurus) azerouali'' (Dutuit) comb. nov. from the Upper Triassic of the Argana Basin (Morocco), and the first phylogenetic analysis of the Metoposauridae (Amphibia, Temnospondyli)". Papers i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Azendohsaurus
''Azendohsaurus'' is an extinct genus of herbivorous archosauromorph reptile from roughly the late Middle to early Late Triassic Period of Morocco and Madagascar. The type species, ''Azendohsaurus laaroussii'', was described and named by Jean-Michel Dutuit in 1972 based on partial jaw fragments and some teeth from Morocco. A second species from Madagascar, ''A. madagaskarensis'', was first described in 2010 by John J. Flynn and colleagues from a multitude of specimens representing almost the entire skeleton. The generic name "Azendoh lizard" is for the village of Azendoh, a local village near where it was first discovered in the Atlas Mountains. It was a bulky quadruped that unlike other early archosauromorphs had a relatively short tail and robust limbs that were held in an odd mix of sprawled hind limbs and raised forelimbs. It had a long neck and a proportionately small head with remarkably sauropod-like jaws and teeth. ''Azendohsaurus'' used to be classified as a herbivorous ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Metoposauridae
Metoposauridae is an extinct family of trematosaurian temnospondyls. The family is known from the Triassic period. Most members are large, approximately long and could reach 3 m long.Brusatte, S. L., Butler R. J., Mateus O., & Steyer S. J. (2015). A new species of Metoposaurus from the Late Triassic of Portugal and comments on the systematics and biogeography of metoposaurid temnospondyls. Journal of Vertebrate Paleontology. e912988., 2015: Metoposaurids can be distinguished from the very similar mastodonsauroids by the position of their eyes, placed far forward on the snout. Taphonomy Several mass accumulations of metoposaurid fossils are known from the southwestern United States and Morocco. These have often been interpreted as the result of mass deaths from droughts. Many individuals would have died in one area, creating a dense bone bed once fossilized. These mass accumulations of metoposaurids are often dominated by one taxa, such as '' Anaschisma'' or '' Metoposaurus''. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prehistoric Amphibian
This list of prehistoric amphibians is an attempt to create a comprehensive listing of all Genus, genera from the fossil record that have ever been considered to be amphibians, excluding purely vernacular terms. The list includes all commonly accepted genera, but also genera that are now considered invalid, doubtful (''nomen dubium, nomina dubia''), or were not formally published (''nomen nudum, nomina nuda''), as well as synonym (zoology), junior synonyms of more established names, and genera that are no longer considered amphibians. Modern forms are excluded from this list. The list currently includes 454 names. Naming conventions and terminology Naming conventions and terminology follow the International Code of Zoological Nomenclature. Technical terms used include: * Synonym (zoology), Junior synonym: A name which describes the same taxon as a previously published name. If two or more genera are formally designated and the type (zoology), type specimens are later assigned to th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Prehistoric Amphibians
This list of prehistoric amphibians is an attempt to create a comprehensive listing of all genera from the fossil record that have ever been considered to be amphibians, excluding purely vernacular terms. The list includes all commonly accepted genera, but also genera that are now considered invalid, doubtful ('' nomina dubia''), or were not formally published (''nomina nuda''), as well as junior synonyms of more established names, and genera that are no longer considered amphibians. Modern forms are excluded from this list. The list currently includes 454 names. Naming conventions and terminology Naming conventions and terminology follow the International Code of Zoological Nomenclature. Technical terms used include: * Junior synonym: A name which describes the same taxon as a previously published name. If two or more genera are formally designated and the type specimens are later assigned to the same genus, the first to be published (in chronological order) is the senior synon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus comes above species and below family (taxonomy), family. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. :E.g. ''Panthera leo'' (lion) and ''Panthera onca'' (jaguar) are two species within the genus ''Panthera''. ''Panthera'' is a genus within the family Felidae. The composition of a genus is determined by taxonomy (biology), taxonomists. The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: # monophyly – all descendants ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amphibian
Amphibians are tetrapod, four-limbed and ectothermic vertebrates of the Class (biology), class Amphibia. All living amphibians belong to the group Lissamphibia. They inhabit a wide variety of habitats, with most species living within terrestrial animal, terrestrial, fossorial, arboreal or freshwater aquatic ecosystems. Thus amphibians typically start out as larvae living in water, but some species have developed behavioural adaptations to bypass this. The young generally undergo metamorphosis from larva with gills to an adult air-breathing form with lungs. Amphibians use their skin as a secondary respiratory surface and some small terrestrial salamanders and frogs lack lungs and rely entirely on their skin. They are superficially similar to reptiles like lizards but, along with mammals and birds, reptiles are amniotes and do not require water bodies in which to breed. With their complex reproductive needs and permeable skins, amphibians are often ecological indicators; in re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carnian
The Carnian (less commonly, Karnian) is the lowermost stage of the Upper Triassic Series (or earliest age of the Late Triassic Epoch). It lasted from 237 to 227 million years ago (Ma). The Carnian is preceded by the Ladinian and is followed by the Norian. Its boundaries are not characterized by major extinctions or biotic turnovers, but a climatic event (known as the Carnian pluvial episode characterized by substantial rainfall) occurred during the Carnian and seems to be associated with important extinctions or biotic radiations. Stratigraphic definitions The Carnian was named in 1869 by Mojsisovics. It is unclear if it was named after the Carnic Alps or after the Austrian region of Carinthia (''Kärnten'' in German) or after the Carnia historical region in northwestern Italy. The name, however, was first used referring to a part of the Hallstatt Limestone cropping out in Austria. The base of the Carnian Stage is defined as the place in the stratigraphic record where t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Argana Formation
The Argana Group is a Permian to Triassic geological group in the western High Atlas northeast of Agadir, Morocco. Sometimes known as the Argana Formation, it contains eight geological members often divided into three formations. They include the Late Permian Ikakern Formation (members T1-T2), the Early Triassic to Carnian Timezgadiouine Formation (T3-T5), and the Late Triassic Bigoudine Formation (T6-T8).Weishampel, David B; et al. (2004). "Dinosaur distribution (Late Triassic, Africa)." In: Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. Pp. 528–529. . Ornithischian tracks are geographically located in Marrakesh province. Indeterminate theropod remains and tracks are geographically located in Marrakesh province. See also * List of dinosaur-bearing rock formations This list of dinosaur-bearing rock formations is a list of geologic formations in which dinosaur fossils have been documen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dutuitosaurus
''Dutuitosaurus'' is a genus of metoposaurids, a group of amphibians that lived during the Late Triassic period. ''Dutuitosaurus'' was discovered in the early 1960s in Morocco and is known from the lower t5 units of the Timezgadiouine Formation exposures in the Argana Basin of the High Atlas Mountains and was first described in 1976 by French paleontologist Jean-Michel Dutuit. Material of ''Dutuitosaurus'' is currently held in the Muséum national d'histoire naturelle (MNHN) in Paris, France. It was originally placed within '' Metoposaurus'' as ''M. ouazzoui'' but was subsequently placed in its own genus, ''Dutuitosaurus'', by Hunt (1993), who identified a number of differences between ''Metoposaurus'' (classically a European genus) and the Moroccan metoposaurids. Features that differentiate ''Dutuitosaurus'' from other metoposaurids include relative elongate intercentra and a maxilla that enters the orbit. Although many metoposaurids are known from so-called mass death assembla ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arganarhinus
''Arganarhinus'' (meaning "Argana (Morocco) snout") is an extinct genus of phytosaur known from the late Triassic period (geology), period (Middle Carnian stage) 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 DutuitDutuit, J. M. (1977b) Description of the skull of ''Angistorhinus talainti'' n. sp: a new phytosaur from the Triassic of the Moroccan Atlas. ''Bulletin du Museum National d'Histoire Naturelle: Sciences de la Terre'' 3(66):297-337 and it was named as a separate genus by Long and Murry in 1995 in paleontology, 1995. The type species is the original ''Paleorhinus magnoculus'' and the ''combinatio nova'' is ''Arganarhinus magnoculus''. Its closest relative was ''Paleorhinus''. References Phytosaurs Late Triassic reptiles of Africa Fossil taxa described in 1995 Prehistoric reptile genera {{triassic-reptile-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Angistorhinus
''Angistorhinus'' (meaning "narrow snout" or "hook snout") 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'' (Stovall and Wharton, 1936), ''A. gracilis'' (Mehl, 1915) and ''A. maximus'' (Mehl, 1928), 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''. Hungerb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diodorus Scytobrachion
''Diodorus'' is a genus of silesaurid dinosauriforms (relatives of dinosaurs) from the Late Triassic ( Carnian - Norian) Timezgadiouine Formation of the Argana Basin of Morocco. Discovery The first fossils of this taxon were discovered by a team from Harvard University in the northeastern Argana Basin, east of Imziln, Morocco, with support from the National Geographic Society and permission from the Moroccan Ministry of Energy and Mines. The remains were found in a quarry at of the Irohalene Mudstone Member of the Timezgadiouine Formation, as part of a layer of disarticulated specimens that included fossils of phytosaurs, prolacertiforms, fish, and temnospondyls. In 2012, the paleontologists Christian F. Kammerer, Sterling J. Nesbitt, and Neil H. Shubin scientifically described the remains, and identified them as representing the first body fossil record of the group Silesauridae from northern Africa. Based on these fossils, they named the new genus and species ''Diodor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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