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Jurodes
''Jurodes'' is an extinct genus of archostematan beetles from the Jurassic period of Asia. Five species have been described. Along with the extant ''Sikhotealinia'', it is one of the two known genera belonging to the family Jurodidae. Species * †''Jurodes ignoramus'' Ponomarenko, 1985 Ichetuy Formation, Buryatia, Russia, Late Jurassic (Oxfordian (stage), Oxfordian) * †''Jurodes minor'' Ponomarenko, 1990 Glushkovo Formation, Zabaykalsky Krai, Zabaykalsky, Russia, Late Jurassic (Tithonian) * †''Jurodes daohugouensis'' Daohugou, Dahougou, China, Middle Jurassic (Callovian) * †''Jurodes pygmaeus'' Dahougou, China, Callovian * †''Jurodes shartegiensis'' Yan 2014, Ulan Malgait Formation, Shar Teeg, Mongolia, Tithonian References {{Taxonbar, from=Q18606257 Archostemata Fossil beetle genera Jurassic insects ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jurodidae
Jurodidae is a family of beetles that was originally described for the extinct genus '' Jurodes'', known from the Middle-Late Jurassic of Asia. In 1996, a living species, '' Sikhotealinia zhiltzovae,'' was discovered in the Sikhote-Alin mountains in southeastern Siberia, and assigned to this family. Their placement is uncertain, but are usually considered archostematans. In one study, ''Sikhotealinia'' and ''Jurodes'' were considered a sister group to all other archostematan beetles. However, other authors have considered their placement within beetles as a whole uncertain, due to their mix characteristics of typical Archostemata, as well as Polyphaga and Adephaga. Subdivision * '' Jurodes'' Ponomarenko 1985 ** †''Jurodes ignoramus'' Ponomarenko, 1985 Ichetuy Formation, Buryatia, Russia, Late Jurassic ( Oxfordian) ** †''Jurodes minor'' Ponomarenko, 1990 Glushkovo Formation, Zabaykalsky, Russia, Late Jurassic (Tithonian In the geological timescale, the Tithonian i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Archostemata
The Archostemata are the smallest suborder of beetles, consisting of 50 living species in five families and over 200 described fossil species. They are an ancient lineage with a number of primitive characteristics. Antenna (biology), Antennae may be thread-shaped (filiform) or like a string of beads (moniliform). This suborder also contains the only beetles where both sexes are Neoteny, paedogenic, ''Micromalthus debilis''. Modern archostematan beetles are considered rare, but were more diverse during the Mesozoic. The term "Archostemata" is used more broadly by some authors to include both modern archostematans as well as stem-group beetles like "protocoleopterans", which some modern archostematans closely resemble to due to their Plesiomorphy and symplesiomorphy, plesiomorphic morphology. Genetic research suggests that modern archostematans are a monophyletic group. Some genetic studies have recovered archostematans as the sister group of Myxophaga. A 2009 paper argued that th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sikhotealinia
''Sikhotealinia'' is a genus of beetle containing a single species, ''Sikhotealinia zhiltzovae'', which is the only living representative of the family Jurodidae, with the only other extant fossils of the family having been uncovered in Transbaikal. It was discovered in 1996 along the environs of the Sikhote-Alin mountain range in Outer Manchuria within Russia's Far East region. This "living fossil" is unique in having three ocelli on its forehead, a condition otherwise unknown in the entire order Coleoptera, whether extinct or living - though it is common in other orders, and generally considered a groundplan character for neoptera Neoptera (Ancient Greek ''néos'' ("new") + ''pterón'' ("wing")) is a classification group that includes most orders of the winged insects, specifically those that can flex their wings over their abdomens. This is in contrast with the more basa ...n insects. ''Sikhotealinia'' and its extinct relative ''Jurodes'' are considered as a sister group to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Archostemata
The Archostemata are the smallest suborder of beetles, consisting of 50 living species in five families and over 200 described fossil species. They are an ancient lineage with a number of primitive characteristics. Antenna (biology), Antennae may be thread-shaped (filiform) or like a string of beads (moniliform). This suborder also contains the only beetles where both sexes are Neoteny, paedogenic, ''Micromalthus debilis''. Modern archostematan beetles are considered rare, but were more diverse during the Mesozoic. The term "Archostemata" is used more broadly by some authors to include both modern archostematans as well as stem-group beetles like "protocoleopterans", which some modern archostematans closely resemble to due to their Plesiomorphy and symplesiomorphy, plesiomorphic morphology. Genetic research suggests that modern archostematans are a monophyletic group. Some genetic studies have recovered archostematans as the sister group of Myxophaga. A 2009 paper argued that th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paratype
In zoology and botany, a paratype is a specimen of an organism that helps define what the scientific name of a species and other taxon actually represents, but it is not the holotype (and in botany is also neither an isotype (biology), isotype nor a syntype). Often there is more than one paratype. Paratypes are usually held in museum research collections. The exact meaning of the term ''paratype'' when it is used in zoology is not the same as the meaning when it is used in botany. In both cases however, this term is used in conjunction with ''holotype''. Zoology In zoological nomenclature, a paratype is officially defined as "Each specimen of a type series other than the holotype.", ''International Code of Zoological Nomenclature'' In turn, this definition relies on the definition of a "type series". A type series is the material (specimens of organisms) that was cited in the original publication of the new species or subspecies, and was not excluded from being type material ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tithonian
In the geological timescale, the Tithonian is the latest age (geology), age of the Late Jurassic Epoch and the uppermost stage (stratigraphy), stage of the Upper Jurassic Series. It spans the time between 149.2 ±0.7 annum, Ma and 143.1 ±0.6 (million years ago). It is preceded by the Kimmeridgian and followed by the Berriasian (part of the Cretaceous). Stratigraphic definitions The Tithonian was introduced in scientific literature by German stratigrapher Albert Oppel in 1865. The name Tithonian is unusual in geological stage names because it is derived from Greek mythology. Tithonus was the son of Laomedon of Troy and fell in love with Eos, the Greek goddess of dawn. His name was chosen by Albert Oppel for this stratigraphy, stratigraphical stage because the Tithonian finds itself hand in hand with the dawn of the Cretaceous. The base of the Tithonian stage is at the base of the ammonite biozone of ''Hybonoticeras, Hybonoticeras hybonotum''. A global reference profile (a GSSP, G ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ulan Malgait Formation
The Ulan Malgait Formation is a Late Jurassic geologic formation in Mongolia. Dinosaur remains are among the fossils that have been recovered from the formation, although none have yet been referred to a specific genus.Weishampel et al., 2004, pp.517-607 It is best known for the Shar Teeg locality which has lent its name to Shartegosuchidae, a family of mesoeucrocodylians (relatives of crocodilians), many of which have been found there; '' Shartegosuchus'' (the family's type genus) means "Shar Teeg crocodile".Dollman et al., 2018 It is divided up into 2 subunits, the lower Shar Teg Beds and the upper Ulan Malgait Beds.Watabe, 2010 The tritylodontids '' Shartegodon, Nuurtherium'' and '' Bienotheroides'' are known from the formation.,Velazco et al., 2017 As is docodontan '' Tegotherium''. The turtles '' Annemys levensis'' and '' Annemys latiens'' and crocodylians '' Sunosuchus shartegensis'' and '' Adzhosuchus fuscus'' were also recovered from the formation.Efimov et al., 2000 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Callovian
In the geologic timescale, the Callovian is an age and stage in the Middle Jurassic, lasting between 165.3 ± 1.1 Ma (million years ago) and 161.5 ± 1.0 Ma. It is the last stage of the Middle Jurassic, following the Bathonian and preceding the Oxfordian. Stratigraphic definitions The Callovian Stage was first described by French palaeontologist Alcide d'Orbigny in 1852. Its name derives from the latinized name for Kellaways Bridge, a small hamlet 3 km north-east of Chippenham, Wiltshire, England. The base of the Callovian is defined as the place in the stratigraphic column where the ammonite genus '' Kepplerites'' first appears, which is the base of the biozone of '' Macrocephalites herveyi''. A global reference profile (a GSSP) for the base had in 2009 not yet been assigned. The top of the Callovian (the base of the Oxfordian) is at the first appearance of ammonite species '' Brightia thuouxensis''. Subdivision The Callovian is often subdivided into three substages ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Daohugou
The Haifanggou Formation (), also known as the Jiulongshan Formation (), is a fossil-bearing rock deposit located near Daohugou () village of Ningcheng County, in Inner Mongolia, northeastern China. The formation consists of coarse conglomerates, sandstone, mudstone, and thin coal layers deposited in deltaic and lacustrine environments. The formation dates to the Callovian of the Middle Jurassic to the Oxfordian of the Late Jurassic. The most prominent locality of the Haifanggou Formation are the Daohugou Beds, located near the village of Daohugou in southeastern Inner Mongolia. Other localities include Wuhuaxigou, Chentaizi, Jiangzhangzi, Wubaiding, Guancaishan, Haifenggou, Fanzhangzi, and Zhuanshanzi. Dating Daohugou bed The age of the Daohugou bed has been debated, and a number of studies, using different methodologies, have reached conflicting conclusions. Various papers have placed the fossils here as being anywhere from the Middle Jurassic period (169 million years ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oxfordian (stage)
The Oxfordian is, in the International Commission on Stratigraphy, ICS' geologic timescale, the earliest age (geology), age of the Late Jurassic epoch (geology), Epoch, or the lowest stage (stratigraphy), stage of the Upper Jurassic series (stratigraphy), Series. It spans the time between 161.5 ± 1.0 Annum#SI prefix multipliers, Ma and 154.8 ± 0.8 Ma (million years ago). The Oxfordian is preceded by the Callovian and is followed by the Kimmeridgian. Stratigraphic definitions The Oxfordian Stage was called "Clunch Clay and Shale" by William Smith (1815–1816); in 1818 W. Buckland described them under the unwieldy title "Oxford, Forest or Fen Clay". The term Oxfordian was introduced by Alcide d'Orbigny in 1844. The name is derived from the English city of Oxford, where the beds are well developed, but they crop out almost continuously from Dorset to the coast of Yorkshire, generally forming low, broad valleys. They are well exposed at Weymouth, Dorset, Weymouth, Oxford, Bedfor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zabaykalsky Krai
Zabaykalsky Krai is a federal subjects of Russia, federal subject of Russia (a krai), located in the Russian Far East. Its administrative center is Chita, Zabaykalsky Krai, Chita. As of the Russian Census (2010), 2010 Census, the population was 1,107,107. The krai was created on 1 March 2008, as a result of a merger of Chita Oblast and Agin-Buryat Autonomous Okrug after a referendum held on the issue on 11 March 2007. In 2018, the krai became part of the Far Eastern Federal District. Geography The krai is located within the historical region of Transbaikalia (Dauria) and has extensive international borders with China (Inner Mongolia and Heilongjiang) (998 km) and Mongolia (Dornod Province, Khentii Province and Selenge Province) (868 km); its internal borders are with Irkutsk Oblast and Amur Oblast, as well as with Buryatia and the Sakha Republic. The Khentei-Daur Highlands are located at the southwestern end. The Ivan-Arakhley Lake System is a group of lakes lying wes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glushkovo Formation
Glushkovo () is the name of several types of inhabited localities in Russia, inhabited localities in Russia. ;Urban localities *Glushkovo, Glushkovsky District, Kursk Oblast, a urban-type settlement, work settlement in Glushkovsky District of Kursk Oblast ;Rural localities *Glushkovo, Kaliningrad Oblast, a settlement in Kamensky Rural Okrug of Chernyakhovsky District of Kaliningrad Oblast *Glushkovo, Krasnoyarsk Krai, a village#Russia, village in Balakhtonsky Selsoviet of Kozulsky District of Krasnoyarsk Krai *Glushkovo, Kulbakinsky Selsoviet, Glushkovsky District, Kursk Oblast, a station settlement in Kulbakinsky Selsoviet of Glushkovsky District of Kursk Oblast *Glushkovo, Republic of Mordovia, a ''village#Russia, selo'' in Glushkovsky Selsoviet of Kadoshkinsky District of the Republic of Mordovia *Glushkovo, Nizhny Novgorod Oblast, a village in Bolsherudkinsky Selsoviet of Sharangsky District of Nizhny Novgorod Oblast *Glushkovo, Kholm-Zhirkovsky District, Smolensk Oblast, a vill ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
