|
Limnoscansor
''Limnoscansor'' (International Phonetic Alphabet, ) is an extinct genus of Ardeosauridae, ardeosaurid lizard from the Late Jurassic Solnhofen Limestone of Germany. Discovery and naming The holotype and only known specimen of ''Limnoscansor'', given the designation CM 4026, was discovered in Wintershof Quarry near Eichstätt in the rocks of the Solnhofen Limestone, a geological unit well-known for its exceptional preservation of small animals. It was originally named and described by Normal MacDowell Grier in the Annals of the Carnegie Museum of Natural History in 1914 as a new species of the rhynchocephalian ''Homeosaurus'', which is known from Solnhofen as well as other Jurassic-aged units. He gave it the species epithet, ''"digitatellus"'', in reference to the apparently fragile digits of the specimen, which appear to have been damaged some time after the animal died, but before it was fossilized.Grier N. 1914A new rhynchocephalian from the Jura of Solenhofen Ann Carnegie Mus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Homeosaurus Digitatellus
''Limnoscansor'' ( ) is an extinct genus of ardeosaurid lizard from the Late Jurassic Solnhofen Limestone of Germany. Discovery and naming The holotype and only known specimen of ''Limnoscansor'', given the designation CM 4026, was discovered in Wintershof Quarry near Eichstätt in the rocks of the Solnhofen Limestone, a geological unit well-known for its exceptional preservation of small animals. It was originally named and described by Normal MacDowell Grier in the Annals of the Carnegie Museum of Natural History in 1914 as a new species of the rhynchocephalian ''Homeosaurus'', which is known from Solnhofen as well as other Jurassic-aged units. He gave it the species epithet, ''"digitatellus"'', in reference to the apparently fragile digits of the specimen, which appear to have been damaged some time after the animal died, but before it was fossilized.Grier N. 1914A new rhynchocephalian from the Jura of Solenhofen Ann Carnegie Mus 9, 86–90. Upon re-examination in 1963, the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Helioscopos
''Helioscopos'' ( ) is an extinct genus of ardeosaurid lizard from the Late Jurassic Morrison Formation of the United States. Discovery and naming The type specimen of ''Helioscopos'', given the designation DINO 15914 (previously DNM 15914), was discovered at Dinosaur National Monument from a locality called "Quarry #317". This locality is part of the famous and well-studied Morrison Formation in Utah. When the specimen was originally reported on in 1998, it was suggested to belong to the genus '' Paramacellodus'', which is known from throughout the Northern Hemisphere in the Late Jurassic. However, the specimen was re-examined in 2023 by a team of authors including Dalton Meyer, Chase Brownstein, Kelsey Jenkins, and Jacques Gauthier in the same publication that they named the new genus ''Limnoscansor''. This re-examination included CT-scanning the specimen, which was preserved in 3D, to study each of bone more thoroughly. Meyer and colleagues determined that the specimen d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2023 In Reptile Paleontology
This list of fossil reptiles described in 2023 is a list of new taxa of fossil reptiles that were binomial nomenclature, described during the year 2023, as well as other significant discoveries and events related to reptile paleontology that occurred in 2023. Squamates Squamate research * Redescription of ''Palaeogekko, Palaeogekko risgoviensis'' is published by Villa (2023), who confirms the validity of this species as a distinct taxon, and interprets it as a non-Eublepharidae, eublepharid Gekkonoidea, gekkonoid of uncertain affinities. * Thorn ''et al.'' (2023) describe new fossil material of ''Tiliqua frangens, Aethesia frangens'' from the Pleistocene of Australia, interpret it as a large-bodied (approximately 2.4 kg) blue-tongued skink, and transfer it to the genus ''Tiliqua''. * Lacertidae, Lacertid, blanid and Anguidae, anguid fossil material, including one of the oldest records of the genus ''Blanus'' reported to date, is described from the Early Miocene localities M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ardeosauridae
Ardeosauridae is an extinct family of lizards known from the Late Jurassic of Germany and North America and Early Cretaceous of Mongolia, with other potential species elsewhere from Europe and Asia over the same time period. The position of this family is debated; they are often recovered as gekkonomorphs, but other studies have found them to be basal squamates, whereas others have found them to be the basalmost members of the Scincoidea or Iguania. The following genera are known: * †'' Ardeosaurus'' Meyer, 1855 * ? †'' Chometokadmon'' Costa, 1864 * †'' Gurvelus'' Alifanov, 2019 * ''† Helioscopos'' Meyer et al. 2023 * †'' Limnoscansor'' Meyer et al. 2023 * ? †'' Palaeolacerta'' Cocude-Michel, 1961 * †?'' Schoenesmahl'' Conrad, 2018 * ? †'' Yabeinosaurus'' Endo and Shikama, 1942 References {{Taxonbar, from=Q17816559 Prehistoric reptile families † A dagger, obelisk, or obelus is a typographical mark that usually indicates a footnote if an aste ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Late Jurassic
The Late Jurassic is the third Epoch (geology), epoch of the Jurassic Period, and it spans the geologic time scale, geologic time from 161.5 ± 1.0 to 143.1 ± 0.8 million years ago (Ma), which is preserved in Upper Jurassic stratum, strata.Owen 1987. In European lithostratigraphy, the name "Malm" indicates rocks of Late Jurassic age. In the past, ''Malm'' was also used to indicate the unit of geological time, but this usage is now discouraged to make a clear distinction between lithostratigraphic and geochronologic/chronostratigraphic units. Subdivisions The Late Jurassic is divided into three ages, which correspond with the three (faunal) stages of Upper Jurassic rock: Paleogeography During the Late Jurassic Epoch, Pangaea broke up into two supercontinents, Laurasia to the north, and Gondwana to the south. The result of this break-up was the emergence of the Atlantic Ocean, which initially was relatively narrow. Life forms This epoch is well known for many famous types of d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Robert Hoffstetter
Robert Julien Hoffstetter (11 June 1908 in Fargniers – 29 December 1999 in Gennevilliers) was a French taxonomist and herpetologist who was influential in categorizing reptiles Reptiles, as commonly defined, are a group of tetrapods with an ectothermic metabolism and Amniotic egg, amniotic development. Living traditional reptiles comprise four Order (biology), orders: Testudines, Crocodilia, Squamata, and Rhynchocepha .... He described the snake families Bolyeriidae and Madtsoiidae. Selected bibliography *''Faune du gisement précolombien d'Anse-Belleville: Reptiles'', 1946 *''Les mammifères pléistocènes de la république de l'Equateur'', 1952 *''Notice sur les titres et travaux scientifiques'', 1955 *''Contribution à l'étude des Orophodontoidea, gravigrades cuirassés de la Patagonie'', 1956 *''Le gisement de ternifine'', 1963 *''Historique et géologie'', 1963 *''Révision des Artiodactyles de l'Eocène moyen de Lissieu (Rhône)'', 1972 *''Rongeurs caviomorphes de ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Alberta
The University of Alberta (also known as U of A or UAlberta, ) is a public research university located in Edmonton, Alberta, Canada. It was founded in 1908 by Alexander Cameron Rutherford, the first premier of Alberta, and Henry Marshall Tory, the university's first president. It was enabled through the ''Post-secondary Learning Act.'' The university is considered a "comprehensive academic and research university" (CARU), which means that it offers a range of academic and professional programs that generally lead to undergraduate and graduate level credentials. The university comprises four campuses in Edmonton, an Augustana Campus in Camrose, Alberta, Camrose, and a staff centre in downtown Calgary. The original north campus consists of 150 buildings covering 50 city blocks on the south rim of the North Saskatchewan River valley parks system, North Saskatchewan River valley, across and west from downtown Edmonton. About 37,000 students from Canada and 150 other countries partici ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jacques Gauthier
Jacques Armand Gauthier (born June 7, 1948, in New York City) is an American vertebrate paleontologist, comparative morphologist, and systematist, and one of the founders of the use of cladistics in biology. Life and career Gauthier is the son of Edward Paul Gauthier and Patricia Marie Grogan. He received a B.S. degree in zoology at San Diego State University in 1973, a master's in biological science at the same institute in 1980, and a PhD in paleontology from the University of California, Berkeley, in 1984. Currently he is a professor of geology and geophysics and ecology and evolutionary biology and curator of vertebrate paleontology and vertebrate zoology at Yale University. His master's thesis, the content of which was published in 1982, is a classic work on the paleontology and phylogeny of the lizard clade Anguimorpha that remains a core reference for morphological research on Xenosauridae and Anguidae in particular. His PhD thesis constituted the first major cladi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monophyletic
In biological cladistics for the classification of organisms, monophyly is the condition of a taxonomic grouping being a clade – that is, a grouping of organisms which meets these criteria: # the grouping contains its own most recent common ancestor (or more precisely an ancestral population), i.e. excludes non-descendants of that common ancestor # the grouping contains all the descendants of that common ancestor, without exception Monophyly is contrasted with paraphyly and polyphyly as shown in the second diagram. A ''paraphyletic'' grouping meets 1. but not 2., thus consisting of the descendants of a common ancestor, excepting one or more monophyletic subgroups. A '' polyphyletic'' grouping meets neither criterion, and instead serves to characterize convergent relationships of biological features rather than genetic relationships – for example, night-active primates, fruit trees, or aquatic insects. As such, these characteristic features of a polyphyletic grouping ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Latin (language)
Latin ( or ) is a classical language belonging to the Italic branch of the Indo-European languages. Latin was originally spoken by the Latins in Latium (now known as Lazio), the lower Tiber area around Rome, Italy. Through the expansion of the Roman Republic, it became the dominant language in the Italian Peninsula and subsequently throughout the Roman Empire. It has greatly influenced many languages, including English, having contributed many words to the English lexicon, particularly after the Christianization of the Anglo-Saxons and the Norman Conquest. Latin roots appear frequently in the technical vocabulary used by fields such as theology, the sciences, medicine, and law. By the late Roman Republic, Old Latin had evolved into standardized Classical Latin. Vulgar Latin refers to the less prestigious colloquial registers, attested in inscriptions and some literary works such as those of the comic playwrights Plautus and Terence and the author Petronius. While ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ancient Greek
Ancient Greek (, ; ) includes the forms of the Greek language used in ancient Greece and the classical antiquity, ancient world from around 1500 BC to 300 BC. It is often roughly divided into the following periods: Mycenaean Greek (), Greek Dark Ages, Dark Ages (), the Archaic Greece, Archaic or Homeric Greek, Homeric period (), and the Classical Greece, Classical period (). Ancient Greek was the language of Homer and of fifth-century Athens, fifth-century Athenian historians, playwrights, and Ancient Greek philosophy, philosophers. It has contributed many words to English vocabulary and has been a standard subject of study in educational institutions of the Western world since the Renaissance. This article primarily contains information about the Homeric Greek, Epic and Classical periods of the language, which are the best-attested periods and considered most typical of Ancient Greek. From the Hellenistic period (), Ancient Greek was followed by Koine Greek, which is regar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Squamate
Squamata (, Latin ''squamatus'', 'scaly, having scales') is the largest Order (biology), order of reptiles; most members of which are commonly known as Lizard, lizards, with the group also including Snake, snakes. With over 11,991 species, it is also the second-largest order of Neontology, extant (living) vertebrates, after the Perciformes, perciform fish. Squamates are distinguished by their skins, which bear horny scale (zoology), scales or shields, and must periodically engage in molting. They also possess movable quadrate bones, making possible movement of the Maxilla, upper jaw relative to the neurocranium. This is particularly visible in snakes, which are able to open their mouths very widely to accommodate comparatively large prey. Squamates are the most variably sized living reptiles, ranging from the Sphaerodactylus ariasae, dwarf gecko (''Sphaerodactylus ariasae'') to the reticulated python (''Malayopython reticulatus''). The now-Extinction, extinct mosasaurs reached ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
