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Ctenosauriscus
''Ctenosauriscus'' is an extinct genus of sail-backed poposauroid archosaur from Early Triassic deposits of Lower Saxony in northern Germany. It gives its name to the family Ctenosauriscidae, which includes other sail-backed poposauroids such as ''Arizonasaurus''. Fossils have been found in latest Olenekian deposits around 247.5-247.2 million years old, making it one of the first known archosaurs. History of discovery ''Ctenosauriscus'' is known from the holotype, GZG.V.4191, a single partial preserved postcranial skeleton including partial vertebral column, ribs and girdle. The holotype is composed of four slabs, which were labeled A1, A2, B1, and B2 in a 2011 study. Slabs A1 and B1 form the part and slabs A2 and B2 form the counterpart. The holotype was discovered in early 1871 in the Bremke dell locality, near the county of Göttingen. The holotype was found in a deposit called the Solling-Bausandstein, which is an outcropping of the upper Middle Buntsandstein in the region of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ctenosauriscidae
Ctenosauriscidae is an extinct family (biology), family of pseudosuchian archosaurs within the clade Poposauroidea. Ctenosauriscids existed in Africa, Asia, Europe and North America during the Early Triassic to the Middle Triassic period (latest Olenekian to Anisian stages). All species had large "sails" on their backs. Ctenosauriscids are among some of the earliest archosaurs and represent the first global radiation of the group. Genera Phylogeny Ctenosauriscidae was named by Oskar Kuhn in 1964 in paleontology, 1964 to include the genus ''Ctenosauriscus''. It is a stem-based taxon defined by Richard J. Butler, Stephen L. Brusatte, Mike Reich, Sterling J. Nesbitt, Rainer R. Schoch and Jahn J. Hornung in 2011 as "the most inclusive clade containing ''Ctenosauriscus koeneni'' but not ''Poposaurus gracilis'', ''Effigia okeeffeae'', ''Postosuchus kirkpatricki'', ''Crocodylus niloticus'', ''Ornithosuchus longidens'', or ''Aetosaurus ferratus''". The cladograms below follows a 2011 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arizonasaurus
''Arizonasaurus'' was a ctenosauriscid archosaur from the Middle Triassic (243 million years ago). ''Arizonasaurus'' is found in the Middle Triassic Moenkopi Formation of northern Arizona. A fairly complete skeleton was found in 2002 by Sterling Nesbitt. The taxon has a large sailback formed by elongated neural spines of the vertebrae. The type species, ''Arizonasaurus babbitti'', was named by Samuel Paul Welles in 1947. Discovery and naming The type species, ''Arizonasaurus babbitti'', was named by Samuel Paul Welles in 1947 on the basis of a few teeth and a maxilla, labelled as specimen UCMP 36232. A fairly complete skeleton was found in 2002 by Sterling Nesbitt. Description ''Arizonasaurus'' had a sail made of tall neural spines. This sail was similar to those of other basal archosaurs, such as other ctenosauriscids like ''Ctenosauriscus'', ''Lotosaurus'', ''Bromsgroveia'', and ''Hypselorhachis''. ''Arizonasaurus'' is described from two braincase specimens. Some ancestral f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Archosaur
Archosauria () is a clade of diapsids, with birds and crocodilians as the only living representatives. Archosaurs are broadly classified as reptiles, in the cladistic sense of the term which includes birds. Extinct archosaurs include non-avian dinosaurs, pterosaurs, and extinct relatives of crocodilians. Modern paleontologists define Archosauria as a crown group that includes the most recent common ancestor of living birds and crocodilians, and all of its descendants. The base of Archosauria splits into two clades: Pseudosuchia, which includes crocodilians and their extinct relatives, and Avemetatarsalia, which includes birds and their extinct relatives (such as non-avian dinosaurs and pterosaurs). Older definitions of the group Archosauria rely on shared morphological characteristics, such as an antorbital fenestra in the skull, serrated teeth, and an upright stance. Some extinct reptiles, such as proterosuchids and euparkeriids, possessed these features yet originated pri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Late Carboniferous
Late may refer to: * LATE, an acronym which could stand for: ** Limbic-predominant age-related TDP-43 encephalopathy, a proposed form of dementia ** Local-authority trading enterprise, a New Zealand business law ** Local average treatment effect, a concept in econometrics Music * ''Late'' (album), a 2000 album by The 77s * Late!, a pseudonym used by Dave Grohl on his ''Pocketwatch'' album * Late (rapper), an underground rapper from Wolverhampton * "Late" (song), a song by Blue Angel * "Late", a song by Kanye West from ''Late Registration'' Other * Late (Tonga), an uninhabited volcanic island southwest of Vavau in the kingdom of Tonga * "Late" (''The Handmaid's Tale''), a television episode * LaTe, Oy Laivateollisuus Ab, a defunct shipbuilding company * Late may refer to a person who is Dead See also * * * ''Lates'', a genus of fish in the lates perch family * Later (other) * Tardiness * Tardiness (scheduling) In scheduling, tardiness is a measure of a delay in exe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pelycosauria
Pelycosaur ( ) is an older term for Basal (phylogenetics), basal or primitive Late Paleozoic synapsids, excluding the therapsids and their descendants. Previously, the term ''mammal-like reptile'' had been used, and pelycosaur was considered an Order (biology), order, but this is now thought to be incorrect, and seen as outdated. Because it excludes the advanced synapsid group Therapsida, the term is paraphyletic and contrary to modern formal naming practice. Thus the name ''pelycosaurs'', similar to the term ''mammal-like reptiles'', had fallen out of favor among scientists by the 21st century, and is only used informally, if at all, in the modern scientific literature. The terms stem mammals, protomammals, and basal or primitive synapsids are used where needed, instead. Etymology The term ''pelycosaur'' has been fairly well abandoned by paleontologists because it no longer matches the features that distinguish a clade. The modern word was created from Greek meaning 'wood ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Göttingen
The University of Göttingen, officially the Georg August University of Göttingen, (german: Georg-August-Universität Göttingen, known informally as Georgia Augusta) is a public research university in the city of Göttingen, Germany. Founded in 1734 by George II, King of Great Britain and Elector of Hanover, and starting classes in 1737, the Georgia Augusta was conceived to promote the ideals of the Enlightenment. It is the oldest university in the state of Lower Saxony and the largest in student enrollment, which stands at around 31,600. Home to many noted figures, it represents one of Germany's historic and traditional institutions. According to an official exhibition held by the University of Göttingen in 2002, 44 Nobel Prize winners had been affiliated with the University of Göttingen as alumni, faculty members or researchers by that year alone. The University of Göttingen was previously supported by the German Universities Excellence Initiative, holds memberships ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eichsfeld
The Eichsfeld ( or ; English: ''Oak-field'') is a historical region in the southeast of the state of Lower Saxony (which is called "Untereichsfeld" = lower Eichsfeld) and northwest of the state of Thuringia ("Obereichsfeld" = upper Eichsfeld) in the south of the Harz mountains in Germany. Until 1803 the Eichsfeld was for centuries part of the Archbishopric of Mainz, which is the cause of its current position as a Catholic enclave in the predominantly Protestant north of Germany. Following German partition in 1945, the West German portion became Landkreis Duderstadt. A few small transfers of territory between the American and Soviet zones of occupation took place in accordance with the Wanfried Agreement. Geography Today the greatest part of the Obereichsfeld makes up the Landkreis (district) Eichsfeld. Other parts belong to the district Unstrut-Hainich-Kreis. The Untereichsfeld, later Landkreis Duderstadt, was merged mostly with the Landkreis of Göttingen, while Lindau became par ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Buntsandstein
The Buntsandstein (German for ''coloured'' or ''colourful sandstone'') or Bunter sandstone is a lithostratigraphy, lithostratigraphic and allostratigraphy, allostratigraphic unit (a sequence of rock strata) in the Subsurface (geology), subsurface of large parts of west and central Europe. The Buntsandstein predominantly consists of sandstone layers of the Lower Triassic series (stratigraphy), series and is one of three characteristic Triassic units, together with the Muschelkalk and Keuper that form the Germanic Trias Supergroup (geology), Supergroup. The Buntsandstein is similar in age, sedimentary facies, facies and lithology with the Bunter (geology), Bunter of the British Isles. It is normally lying on top of the Permian Zechstein and below the Muschelkalk. In the past the name Buntsandstein was in Europe also used in a chronostratigraphy, chronostratigraphic sense, as a subdivision of the Triassic system. Among reasons to abandon this use was the discovery that its base lies a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Göttingen
Göttingen (, , ; nds, Chöttingen) is a college town, university city in Lower Saxony, central Germany, the Capital (political), capital of Göttingen (district), the eponymous district. The River Leine runs through it. At the end of 2019, the population was 118,911. General information The origins of Göttingen lay in a village called ''Gutingi, ''first mentioned in a document in 953 AD. The city was founded northwest of this village, between 1150 and 1200 AD, and adopted its name. In Middle Ages, medieval times the city was a member of the Hanseatic League and hence a wealthy town. Today, Göttingen is famous for its old university (''Georgia Augusta'', or University of Göttingen, "Georg-August-Universität"), which was founded in 1734 (first classes in 1737) and became the most visited university of Europe. In 1837, seven professors protested against the absolute sovereignty of the House of Hanover, kings of Kingdom of Hanover, Hanover; they lost their positions, but be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Compression Fossil
A compression fossil is a fossil preserved in sedimentary rock that has undergone physical compression. While it is uncommon to find animals preserved as good compression fossils, it is very common to find plants preserved this way. The reason for this is that physical compression of the rock often leads to distortion of the fossil. The best fossils of leaves are found preserved in fine layers of sediment that have been compressed in a direction perpendicular to the plane of the deposited sediment. Since leaves are basically flat, the resulting distortion is minimal. Plant stems and other three-dimensional plant structures do not preserve as well under compression. Typically, only the basic outline and surface features are preserved in compression fossils; internal anatomy is not preserved. These fossils may be studied while still partially entombed in the sedimentary rock matrix where they are preserved, or once lifted out of the matrix by a peel or transfer technique. Compr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
