|
Thaichelys Ruchae Shell Fragments
''Thaichelys'' (meaning "Thai turtle") is a genus of extinct Proterochersidae, proterochersid stem-turtle from the Late Triassic Huai Hin Lat Formation of Thailand. The type species is ''T. ruchae'' and it was initially classified as a species of ''Proganochelys''. Discovery and naming The first discovered remains referable to ''Thaichelys'' were discovered in 1980 along the road from Ban Huai Sanan Sai to Na Pha Song. The remains were initially described as Turtle, Testudines indet. by de Lapparent de Broin et al. (1982) before being referred to "''Proganochelys''" ''ruchae'' (now ''Thaichelys ruchae'') in 1984. The specimens have since become lost, but casts exist of all but one of the specimens in the National Museum of Natural History, France, French National Museum of Natural History. In 1981, three more specimens were discovered: SM2015-1-001 (the holotype) and SM2017-1-124–SM2017-1-136. They were recovered from the exposed surface limestones of the Huai Hin Lat Format ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Late Triassic
The Late Triassic is the third and final epoch (geology), epoch of the Triassic geologic time scale, Period in the geologic time scale, spanning the time between annum, Ma and Ma (million years ago). It is preceded by the Middle Triassic Epoch and followed by the Early Jurassic Epoch. The corresponding series (stratigraphy), series of rock beds is known as the Upper Triassic. The Late Triassic is divided into the Carnian, Norian and Rhaetian Geologic time scale, ages. Many of the first dinosaurs evolved during the Late Triassic, including ''Plateosaurus'', ''Coelophysis'', ''Herrerasaurus'', and ''Eoraptor''. The Triassic–Jurassic extinction event began during this epoch and is one of the five major mass extinction events of the Earth. Etymology The Triassic was named in 1834 by Friedrich August von Namoh, Friedrich von Alberti, after a succession of three distinct rock layers (Greek meaning 'triad') that are widespread in southern Germany: the lower Buntsandstein (colourful ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2025 In Reptile Paleontology
This catalog of fossil reptile research published in 2025 includes a list of new taxa that were Species description, described during the year 2025, as well as other significant discoveries and events related to reptile paleontology that occurred in 2025. Squamates New squamate taxa Squamate research * A study on the biogeography of squamates throughout their evolutionary history is published by Wilenzik & Pyron (2025), who identify Europe and northeastern Asia as the most likely areas of the origin of Squamata. * Brownstein et al. (2025) argue that the common ancestor of extant night lizards originated before the Cretaceous–Paleogene extinction event and that members of the group survived the extinction in spite of living in the areas close to the site of the Chicxulub crater, Chicxulub impact crater. * Jiang et al. (2025) review the taxonomic composition, phylogenetic affinities, morphological diversity and geographical distribution of polyglyphanodontians. * Santos et a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Proganochelys
''Proganochelys'' is a genus of extinct, primitive stem-turtle. ''Proganochelys'' was named by Georg Baur in 1887 as the oldest turtle in existence at the time. The name ''Proganochelys'' comes from the Greek language, Greek word ''ganos'' meaning 'brightness', combined with prefix ''pro'', 'before', and Greek language, Greek base ''chelys'' meaning 'turtle'. ''Proganochelys'' is believed to have been around 1 meter in size and herbivorous in nature. ''Proganochelys'' had been known as the most primitive stem-turtle for over a century, until the novel discovery of ''Odontochelys'' in 2008. ''Odontochelys'' and ''Proganochelys'' share unique primitive features that are not found in ''Casichelydia'', such as tooth-like structures on the pterygoid bone, pterygoid and vomer and a plate-like coracoid. ''Proganochelys quenstedtii'' is the only known species of this genus and is among the oldest known Pantestudines, stem-turtle species with a complete shell discovered to date, known fro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Proterochersidae
Proterochersidae is an extinct family of stem-turtles belonging to the clade Testudinata. List of genera There are four genera: * ''Chinlechelys'' Joyce ''et al.'', 2009 ** '' Chinlechelys tenertesta'' Joyce ''et al.'', 2009 * '' Keuperotesta'' Szczygielski & Sulej, 2016 (junior synonym of ''Proterochersis''?) ** '' Keuperotesta limendorsa'' Szczygielski & Sulej, 2016 * ''Proterochersis ''Proterochersis'' is an extinct genus of turtle from the Late Triassic period (Norian stage) of Europe. It is known from a large number of fossils uncovered in Germany and Poland.Fraas E (1913)"''Proterochersis'', eine pleurodire Schildkröte au ...'' Fraas, 1913 ** ''Proterochersis intermedia'' Fraas, 1913 (synonym of ''P. robusta''?) ** '' Proterochersis porebensis'' Szczygielski & Sulej, 2016 ** '' Proterochersis robusta'' Fraas, 1913 * '' Thaichelys'' Szczygielski ''et al.'', 2025 ** '' Thaichelys ruchae'' (Broin, 1984) References Testudinata Taxa named by Franz Nopcsa von Felső-S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Turtle
Turtles are reptiles of the order (biology), order Testudines, characterized by a special turtle shell, shell developed mainly from their ribs. Modern turtles are divided into two major groups, the Pleurodira (side necked turtles) and Cryptodira (hidden necked turtles), which differ in the way the head retracts. There are 360 living and recently extinct species of turtles, including land-dwelling tortoises and freshwater terrapins. They are found on most continents, some islands and, in the case of sea turtles, much of the ocean. Like other Amniote, amniotes (reptiles, birds, and mammals) they breathe air and do not lay eggs underwater, although many species live in or around water. Turtle shells are made mostly of bone; the upper part is the domed Turtle shell#Carapace, carapace, while the underside is the flatter plastron or belly-plate. Its outer surface is covered in scale (anatomy), scales made of keratin, the material of hair, horns, and claws. The carapace bones deve ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Huai Hin Lat Formation
The Huai River, formerly romanized as the Hwai, is a major river in East China, about long with a drainage area of . It is located about midway between the Yellow River and Yangtze River, the two longest rivers and largest drainage basins in China. Historically draining eastwards directly into the Yellow Sea, erosion from floods have changed the course of the river such that it now primarily discharges into the Yangtze. The Huai River is, to this day, notoriously vulnerable to flooding. The Qinling–Huaihe Line, formed by the Huai River and the Qin Mountains, is sometimes regarded as the geographical dividing line between northern and southern China. This line approximates the January isotherm and the isohyet in China. Course The Huai River originates in Tongbai Mountain in Henan province. It flows through southern Henan, northern Anhui, and northern Jiangsu where it pools into Lake Hongze. Nowadays the Huai River then runs southwards as the Sanhe River by way of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thailand
Thailand, officially the Kingdom of Thailand and historically known as Siam (the official name until 1939), is a country in Southeast Asia on the Mainland Southeast Asia, Indochinese Peninsula. With a population of almost 66 million, it spans . Thailand Template:Borders of Thailand, is bordered to the northwest by Myanmar, to the northeast and east by Laos, to the southeast by Cambodia, to the south by the Gulf of Thailand and Malaysia, and to the southwest by the Andaman Sea; it also shares maritime borders with Vietnam to the southeast and Indonesia and India to the southwest. Bangkok is the state capital and List of municipalities in Thailand#Largest cities by urban population, largest city. Tai peoples, Thai peoples migrated from southwestern China to mainland Southeast Asia from the 6th to 11th centuries. Greater India, Indianised kingdoms such as the Mon kingdoms, Mon, Khmer Empire, and Monarchies of Malaysia, Malay states ruled the region, competing with Thai states s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thaichelys Ruchae Shell Fragments
''Thaichelys'' (meaning "Thai turtle") is a genus of extinct Proterochersidae, proterochersid stem-turtle from the Late Triassic Huai Hin Lat Formation of Thailand. The type species is ''T. ruchae'' and it was initially classified as a species of ''Proganochelys''. Discovery and naming The first discovered remains referable to ''Thaichelys'' were discovered in 1980 along the road from Ban Huai Sanan Sai to Na Pha Song. The remains were initially described as Turtle, Testudines indet. by de Lapparent de Broin et al. (1982) before being referred to "''Proganochelys''" ''ruchae'' (now ''Thaichelys ruchae'') in 1984. The specimens have since become lost, but casts exist of all but one of the specimens in the National Museum of Natural History, France, French National Museum of Natural History. In 1981, three more specimens were discovered: SM2015-1-001 (the holotype) and SM2017-1-124–SM2017-1-136. They were recovered from the exposed surface limestones of the Huai Hin Lat Format ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Turtle
Turtles are reptiles of the order (biology), order Testudines, characterized by a special turtle shell, shell developed mainly from their ribs. Modern turtles are divided into two major groups, the Pleurodira (side necked turtles) and Cryptodira (hidden necked turtles), which differ in the way the head retracts. There are 360 living and recently extinct species of turtles, including land-dwelling tortoises and freshwater terrapins. They are found on most continents, some islands and, in the case of sea turtles, much of the ocean. Like other Amniote, amniotes (reptiles, birds, and mammals) they breathe air and do not lay eggs underwater, although many species live in or around water. Turtle shells are made mostly of bone; the upper part is the domed Turtle shell#Carapace, carapace, while the underside is the flatter plastron or belly-plate. Its outer surface is covered in scale (anatomy), scales made of keratin, the material of hair, horns, and claws. The carapace bones deve ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Museum Of Natural History, France
The French National Museum of Natural History ( ; abbr. MNHN) is the national natural history museum of France and a of higher education part of Sorbonne University. The main museum, with four galleries, is located in Paris, France, within the Jardin des Plantes on the left bank of the River Seine. It was formally founded in 1793, during the French Revolution, but was begun even earlier in 1635 as the royal garden of medicinal plants. The museum now has 14 sites throughout France. Since the 2014 reform, it has been headed by a chairman, assisted by deputy managing directors. The Museum has a staff of approximately 2,350 members, including six hundred researchers. It is a member of the national network of naturalist collections (RECOLNAT). History 17th–18th century File:Jardin du roi 1636.png, The Royal Garden of Medicinal Plants in 1636 File:Buffon statue dsc00979.jpg, Statue of Georges-Louis Leclerc, Comte de Buffon in the formal garden File:Buffon, Georges Louis - Lecle ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Holotype
A holotype (Latin: ''holotypus'') is a single physical example (or illustration) of an organism used when the species (or lower-ranked taxon) was formally described. It is either the single such physical example (or illustration) or one of several examples, but explicitly designated as the holotype. Under the International Code of Zoological Nomenclature (ICZN), a holotype is one of several kinds of name-bearing types. In the International Code of Nomenclature for algae, fungi, and plants (ICN) and ICZN, the definitions of types are similar in intent but not identical in terminology or underlying concept. For example, the holotype for the butterfly '' Plebejus idas longinus'' is a preserved specimen of that subspecies, held by the Museum of Comparative Zoology at Harvard University. In botany and mycology, an isotype is a duplicate of the holotype, generally pieces from the same individual plant or samples from the same genetic individual. A holotype is not necessarily "ty ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Si Chomphu District
Si Chomphu (, ; , ) is a district (''amphoe'') of Khon Kaen province, northeastern Thailand. History The district was established as a minor district (''king amphoe'') on 1 July 1965, when three ''tambons'', Si Suk, Si Chomphu, and Na Chan were split from Chum Phae district. It was upgraded to a full district on 1 March 1969. Geography Neighboring districts are (from the north clockwise): Si Bun Rueang of Nong Bua Lamphu province; Nong Na Kham, Wiang Kao, and Chum Phae of Khon Kaen Province; and Phu Kradueng of Loei province. Administration The district is divided into 10 subdistricts (''tambons''), which are further subdivided into 107 villages (''mubans''). Si Chomphu is a township (''thesaban tambon'') and covers parts of ''tambon'' Wang Phoem. There are a further 10 tambon administrative organizations (TAO). Attractions *Wat Tham Saeng Tham, Tambon Boribun - A large Buddhist temple complex with a cave system inside the mountain. Inside the main cave has a marble f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
