|
Meganura Famulus
''Meganeura'' is a genus of extinct insects from the Late Carboniferous (approximately 300 million years ago). It is a member of the extinct order Meganisoptera, which are closely related to and resemble dragonflies and damselflies (with dragonflies, damselflies and meganisopterans being part of the broader group Odonatoptera). Like other odonatopterans, they were predatory, with their diet mainly consisting of other insects. The genus belongs to the Meganeuridae, a family including other similarly giant dragonfly-like insects ranging from the Late Carboniferous to Middle Permian. With single wing length reaching and a wingspan about , ''M. monyi'' is one of the largest-known flying insect species. Fossils of ''Meganeura'' were first discovered in Late Carboniferous ( Stephanian) Coal Measures of Commentry, France in 1880. In 1885, French paleontologist Charles Brongniart described and named the fossil "''Meganeura''" (great-nerved), which refers to the network of veins on the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kasimovian
The Kasimovian is a geochronologic age or chronostratigraphic stage in the ICS geologic timescale. It is the third stage in the Pennsylvanian (late Carboniferous), lasting from to Ma.; 2004: ''A Geologic Time Scale 2004'', Cambridge University Press. The Kasimovian Stage follows the Moscovian and is followed by the Gzhelian. The Kasimovian saw an extinction event which occurred around 305 mya, referred to as the Carboniferous Rainforest Collapse. It roughly corresponds to the Missourian in North American geochronology and the Stephanian in western European geochronology. Name and definition The Kasimovian is named after the Russian city of Kasimov. The stage was split from the Moscovian in 1926 by Boris Dan'shin (1891-1941), who gave it the name ''Teguliferina horizon''. The name was posthumously changed to ''Kasimov horizon'' by Dan'shin in 1947. The name Kasimovian was introduced by Georgy Teodorovich in 1949. The base of the Kasimovian Stage is at the base of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Commentry
Commentry (; Auvergnat: ''Comentriac'') is a commune in the department of Allier in central France. It lies southwest of Moulins in the valley of the Œil. It is within 8 km of one of the geographic centres of France. The film actress Yvonne Rozille (1900–1985) was born in Commentry. Population History Commentry was home to Compagnie de Commentry-Fourchambault-Decazeville, thanks to an important coal deposit. The coal mine fueled a huge growth in population, from under 1,000 to more than 12,000, while Stéphane Mony was its CEO (1840–1884). Commentry was the first commune ever to elect a socialist mayor: Christophe Thivrier was elected 6 June 1882. During the repression of January and February 1894, the police conducted raids targeting the anarchists living there, without much success. The Socialist Party of France was founded in Commentry in September 1902. Economy Commentry gave its name to a coal field over 21 square kilometres in extent, and histo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Meganeura Monyi Wings Brongniart 1893
''Meganeura'' is a genus of extinct insects from the Late Carboniferous (approximately 300 million years ago). It is a member of the extinct order Meganisoptera, which are closely related to and resemble dragonflies and damselflies (with dragonflies, damselflies and meganisopterans being part of the broader group Odonatoptera). Like other odonatopterans, they were predatory, with their diet mainly consisting of other insects. The genus belongs to the Meganeuridae, a family including other similarly giant dragonfly-like insects ranging from the Late Carboniferous to Middle Permian. With single wing length reaching and a wingspan about , ''M. monyi'' is one of the largest-known flying insect species. Fossils of ''Meganeura'' were first discovered in Late Carboniferous ( Stephanian) Coal Measures of Commentry, France in 1880. In 1885, French paleontologist Charles Brongniart described and named the fossil "''Meganeura''" (great-nerved), which refers to the network of veins on the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arthropod Leg
The arthropod leg is a form of jointed appendage of arthropods, usually used for walking. Many of the terms used for arthropod leg segments (called podomeres) are of Latin origin, and may be confused with terms for bones: ''coxa'' (meaning hip (anatomy), hip, : ''coxae''), ''trochanter'', ''femur'' (: ''femora''), ''tibia'' (: ''tibiae''), ''tarsus'' (: ''tarsi''), ''ischium'' (: ''ischia''), ''metatarsus'', ''carpus'', ''dactylus'' (meaning finger), ''patella'' (: ''patellae''). Homology (biology), Homologies of leg segments between groups are difficult to prove and are the source of much argument. Some authors posit up to eleven segments per leg for the most recent common ancestor of Neontology, extant arthropods but modern arthropods have eight or fewer. It has been argued that the ancestral leg need not have been so complex, and that other events, such as successive loss of function of a Homeobox, ''Hox''-gene, could result in Parallel evolution, parallel gains of leg segments ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aeshnidae
Aeshnidae, also called aeshnids, hawkers, or darners, is a family of dragonflies, found nearly worldwide, with more than 50 genera and over 450 species. The family includes some of the largest dragonflies. Description Common worldwide or nearly worldwide genera are '' Aeshna'' and '' Anax''. ''Anax'' includes some of the largest dragonflies, including the North American '' A. walsinghami'', Hawaiian '' A. strenuus'', European '' A. imperator'' and '' A. immaculifrons'', and African '' A. tristis'', but these are all exceeded by another member of the family, the Asian '' Tetracanthagyna plagiata'', which by wingspan and weight is the world's largest dragonfly. There are 41 North American species in 11 genera in this family. Most European species belong to ''Aeshna''. Their American name "darner" stems from the female abdomens looking like a sewing needle, as they cut into plant stem when they lay their eggs through the ovipositor. The dragonflies mate in flight. The eggs are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Meganeura
''Meganeura'' is a genus of extinct insects from the Late Carboniferous (approximately 300 million years ago). It is a member of the extinct order Meganisoptera, which are closely related to and resemble dragonflies and damselflies (with dragonflies, damselflies and meganisopterans being part of the broader group Odonatoptera). Like other odonatopterans, they were predatory, with their diet mainly consisting of other insects. The genus belongs to the Meganeuridae, a family including other similarly giant dragonfly-like insects ranging from the Late Carboniferous to Middle Permian. With single wing length reaching and a wingspan about , ''M. monyi'' is one of the largest-known flying insect species. Fossils of ''Meganeura'' were first discovered in Late Carboniferous ( Stephanian) Coal Measures of Commentry, France in 1880. In 1885, French paleontologist Charles Brongniart described and named the fossil "''Meganeura''" (great-nerved), which refers to the network of vei ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paris
Paris () is the Capital city, capital and List of communes in France with over 20,000 inhabitants, largest city of France. With an estimated population of 2,048,472 residents in January 2025 in an area of more than , Paris is the List of cities in the European Union by population within city limits, fourth-most populous city in the European Union and the List of cities proper by population density, 30th most densely populated city in the world in 2022. Since the 17th century, Paris has been one of the world's major centres of finance, diplomacy, commerce, culture, Fashion capital, fashion, and gastronomy. Because of its leading role in the French art, arts and Science and technology in France, sciences and its early adoption of extensive street lighting, Paris became known as the City of Light in the 19th century. The City of Paris is the centre of the Île-de-France region, or Paris Region, with an official estimated population of 12,271,794 inhabitants in January 2023, or ... [...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 - Lecler ... [...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] |
Derbyshire
Derbyshire ( ) is a ceremonial county in the East Midlands of England. It borders Greater Manchester, West Yorkshire, and South Yorkshire to the north, Nottinghamshire to the east, Leicestershire to the south-east, Staffordshire to the south and west, and Cheshire to the west. Derby is the largest settlement, and Matlock is the county town. The county has an area of and a population of 1,053,316. The east of the county is more densely populated than the west, and contains the county's largest settlements: Derby (261,400), Chesterfield (88,483), and Swadlincote (45,000). For local government purposes Derbyshire comprises a non-metropolitan county, with eight districts, and the Derby unitary authority area. The East Midlands Combined County Authority includes Derbyshire County Council and Derby City Council. The north and centre of Derbyshire are hilly and contain the southern end of the Pennines, most of which are part of the Peak District National Park. They include Kinde ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
