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Metoposaurus Diagnosticus
''Metoposaurus'' meaning "front lizard" is an extinct genus of stereospondyl temnospondyl amphibian, known from the Late Triassic of Germany, Italy, Poland, and Portugal. https://www.app.pan.pl/archive/published/app47/app47-535.pdf This mostly aquatic animal possessed small, weak limbs, sharp teeth, and a large, flat head. This highly flattened creature mainly fed on fish, which it captured with its wide jaws lined with needle-like teeth. ''Metoposaurus'' was up to 3 m (10 feet) long and weighed about 450 kg (1,000 pounds). Many ''Metoposaurus'' mass graves have been found, probably from creatures that grouped together in drying pools during drought. Discovery and species Discovery The earliest mention of Metoposauridae dates back to 1842 when Von Meyer described the dorsal view of the skull roof of a labyrinthodont from the Keuper Schilfsandstein of Feuerbacher Haide near Stuttgart. Later, Meyer attempted a reconstruction of the same specimen and named it ''Metopias d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Norian
The Norian is a division of the Triassic Period. It has the rank of an age (geochronology) or stage (chronostratigraphy). It lasted from ~227 to million years ago. It was preceded by the Carnian and succeeded by the Rhaetian. Stratigraphic definitions The Norian was named after the Noric Alps in Austria. The stage was introduced into scientific literature by Austrian geologist Edmund Mojsisovics von Mojsvar in 1869. The Norian Stage begins at the base of the ammonite biozones of '' Klamathites macrolobatus'' and '' Stikinoceras kerri'', and at the base of the conodont biozones of '' Metapolygnathus communisti'' and '' Metapolygnathus primitius''. A global reference profile for the base (a GSSP) had in 2009 not yet been appointed. The top of the Norian (the base of the Rhaetian) is at the first appearance of ammonite species '' Cochloceras amoenum''. The base of the Rheatian is also close to the first appearance of conodont species '' Misikella spp.'' and '' Epigondolella mo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Drought
A drought is defined as drier than normal conditions.Douville, H., K. Raghavan, J. Renwick, R.P. Allan, P.A. Arias, M. Barlow, R. Cerezo-Mota, A. Cherchi, T.Y. Gan, J. Gergis, D. Jiang, A. Khan, W. Pokam Mba, D. Rosenfeld, J. Tierney, and O. Zolina, 2021Water Cycle Changes In Climate Change 2021: The Physical Science Basis. Contribution of Working Group I to the Sixth Assessment Report of the Intergovernmental Panel on Climate Change [Masson-Delmotte, V., P. Zhai, A. Pirani, S.L. Connors, C. Péan, S. Berger, N. Caud, Y. Chen, L. Goldfarb, M.I. Gomis, M. Huang, K. Leitzell, E. Lonnoy, J.B.R. Matthews, T.K. Maycock, T. Waterfield, O. Yelekçi, R. Yu, and B. Zhou (eds.)]. Cambridge University Press, Cambridge, United Kingdom and New York, NY, USA, pp. 1055–1210, doi:10.1017/9781009157896.010. This means that a drought is "a moisture deficit relative to the average water availability at a given location and season". A drought can last for days, months or years. Drought ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Weser Formation
The Weser () is a river of Lower Saxony in north-west Germany. It begins at Hannoversch Münden through the confluence of the Werra and Fulda. It passes through the Hanseatic city of Bremen. Its mouth is further north against the ports of Bremerhaven and Nordenham. The latter is on the Butjadingen Peninsula. It then merges into the North Sea via two highly saline, estuarine mouths. It connects to the canal network running east-west across the North German Plain. The river, when combined with the Werra (a dialectal form of "Weser"), is long and thus, the longest river entirely situated within Germany (the Main, however, is the longest if the Weser and Werra are not combined). The Weser itself is long. The Werra rises in Thuringia, the German state south of the main projection (tongue) of Lower Saxony. Etymology "Weser" and "Werra" are the same words in different dialects. The difference reflects the old linguistic border between Central and Low German, passing through Ha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gres à Avicula Contorta Formation
The Gres a Avicula contorta is a geological formation in France. It dates back to the late Norian.Weishampel, David B; et al. (2004). "Dinosaur distribution (Late Triassic, Europe)." In: Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. Pp. 521–525. . Vertebrate paleofauna *'' Rhomphaiodon nicolensis'' (type locality) 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 documented. Containing body fossils * List of stratigraphic units with dinosaur body fossils ** List of stratigraphic units with few ... References {{Reflist Triassic System of Europe Norian Stage ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Apachesaurus
''Apachesaurus'' is an extinct genus of metoposaurid temnospondyl amphibian from western North America. Description and taxonomy ''Apachesaurus'' was described from the Late Triassic (late Norian-Rhaetian The Rhaetian is the latest age of the Triassic Period (in geochronology) or the uppermost stage of the Triassic System (in chronostratigraphy). It was preceded by the Norian and succeeded by the Hettangian (the lowermost stage or earliest age ...) Redonda Formation of eastern New Mexico as a small, diminutive genus of metoposaurid. The small elongate centra were used by Hunt (1993) to consider ''Apachesaurus'' a small species of metoposaurid. However, Gee ''et al.'' (2017, 2018) demonstrated that centra referred to ''Apachesaurus'' are juveniles rather than small adults, concluding that ''Apachesaurus'' specimens are juveniles, though they cautioned they could not determine whether these are ''Anaschisma'' or a distinct taxon in its own right.Gee, B.M., and Parker, W.G. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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] |
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] |
Koskinonodon
''Anaschisma'' is an extinct genus of large temnospondyl amphibians. These animals were part of the family called Metoposauridae, which filled the crocodile-like predatory niches in the late Triassic. It had large skull about long, and possibly reached long. It was an ambush hunter, snapping up anything small enough to fit in its huge jaws. It was very common during the Late Triassic ( Norian age) in what is now the American Southwest. History of discovery ''Anaschisma'' was erected by Branson (1905) for two metoposaurid skulls from the Popo Agie Formation of Wyoming. The type species, ''A. browni'', was coined for the skull UC 447, while a second nominal species, ''A. brachygnatha'', was erected for the skull UC 448. Moodie (1908) considered ''A. brachygnatha'' a junior synonym of ''A. browni'', although Branson and Mehl (1929) retained the two species as distinct.Branson, E. B. & Mehl, M. G. 1929. Triassic amphibians from the Rocky Mountain region. The University of Miss ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orbit
In celestial mechanics, an orbit is the curved trajectory of an object such as the trajectory of a planet around a star, or of a natural satellite around a planet, or of an artificial satellite around an object or position in space such as a planet, moon, asteroid, or Lagrange point. Normally, orbit refers to a regularly repeating trajectory, although it may also refer to a non-repeating trajectory. To a close approximation, planets and satellites follow elliptic orbits, with the center of mass being orbited at a focal point of the ellipse, as described by Kepler's laws of planetary motion. For most situations, orbital motion is adequately approximated by Newtonian mechanics, which explains gravity as a force obeying an inverse-square law. However, Albert Einstein's general theory of relativity, which accounts for gravity as due to curvature of spacetime, with orbits following geodesics, provides a more accurate calculation and understanding of the exact mechanics of orbi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Skull
The skull is a bone protective cavity for the brain. The skull is composed of four types of bone i.e., cranial bones, facial bones, ear ossicles and hyoid bone. However two parts are more prominent: the cranium and the mandible. In humans, these two parts are the neurocranium and the viscerocranium ( facial skeleton) that includes the mandible as its largest bone. The skull forms the anterior-most portion of the skeleton and is a product of cephalisation—housing the brain, and several sensory structures such as the eyes, ears, nose, and mouth. In humans these sensory structures are part of the facial skeleton. Functions of the skull include protection of the brain, fixing the distance between the eyes to allow stereoscopic vision, and fixing the position of the ears to enable sound localisation of the direction and distance of sounds. In some animals, such as horned ungulates (mammals with hooves), the skull also has a defensive function by providing the mount (on the front ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lacrimal Bone
The lacrimal bone is a small and fragile bone of the facial skeleton; it is roughly the size of the little fingernail. It is situated at the front part of the medial wall of the orbit. It has two surfaces and four borders. Several bony landmarks of the lacrimal bone function in the process of lacrimation or crying. Specifically, the lacrimal bone helps form the nasolacrimal canal necessary for tear translocation. A depression on the anterior inferior portion of the bone, the lacrimal fossa, houses the membranous lacrimal sac. Tears or lacrimal fluid, from the lacrimal glands, collect in this sac during excessive lacrimation. The fluid then flows through the nasolacrimal duct and into the nasopharynx. This drainage results in what is commonly referred to a runny nose during excessive crying or tear production. Injury or fracture of the lacrimal bone can result in posttraumatic obstruction of the lacrimal pathways. Structure Lateral or orbital surface The lateral or orbital surface i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Restoration Of Metoposaurus Krasiejowensis By Szymon Górnicki
Restoration is the act of restoring something to its original state and may refer to: * Conservation and restoration of cultural heritage ** Audio restoration ** Film restoration ** Image restoration ** Textile restoration *Restoration ecology **Environmental restoration Film and television * ''The Restoration'' (1909 film), a film by D.W. Griffith starring Mary Pickford * ''The Restoration'' (1910 film), an American silent short drama produced by the Thanhouser Company *The Restoration (2020 film), a Peruvian comedy film * ''Restoration'' (1995 film), a film by Michael Hoffman starring Robert Downey Jr * ''Restoration'' (2011 film), an Israeli film by Yossi Madmoni * ''Restoration'' (2016 film), an Australian science fiction thriller by Stuart Willis * ''Restoration'' (TV series), a BBC TV series * "Restoration" (''Arrow''), an episode of ''Arrow'' History * Kenmu Restoration (1333) in Japan * Portuguese Restoration War (1640–1668) * Stuart Restoration (1660) in Eng ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
