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1893 In Paleontology
Arthropods Newly named insects Fish Newly named Ray-finned fish Archosauromorphs Newly named dinosaurs Plesiosaurs New taxa Synapsids Non-mammalian References {{portal, Paleontology ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bothriomyrmex Goepperti
''Bothriomyrmex'' is a genus of ants in the subfamily Dolichoderinae. Distribution and habitat The genus is widely distributed in the Old World and Australia, where it is found nesting in a wide range of habitats (including grasslands, savanna woodlands, mallee forests and lowland rainforest). They nest in soil or in rotten wood. Species *'' Bothriomyrmex anastasiae'' Dubovikov, 2002 *'' Bothriomyrmex atlantis'' Forel, 1894 *'' Bothriomyrmex breviceps'' Santschi, 1919 *'' Bothriomyrmex communistus'' Santschi, 1919 *'' Bothriomyrmex corsicus'' Santschi, 1923 *'' Bothriomyrmex costae'' Emery, 1869 *'' Bothriomyrmex crosi'' Santschi, 1919 *''Bothriomyrmex cuculus ''Bothriomyrmex cuculus'' is a species of ant in the genus ''Bothriomyrmex''. Described by Santschi in 1919, the species is endemic to Algeria and Tunisia ) , image_map = Tunisia location (orthographic projection).svg , map_ca ...'' Santschi, 1919 *'' Bothriomyrmex decapitans'' Santschi, 1911 *' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dolichoderus Sculpturatus MBI2301 Profile
''Dolichoderus'' is a genus of ants found worldwide. Taxonomy The ants of the Neotropical genus ''Monacis'' were revised in 1959 by Kempf. However, Brown in 1973 and G. C. Wheeler and J. Wheeler in 1973 and 1976 considered both ''Monacis'' and ''Hypoclinea'' to be junior synonyms of ''Dolichoderus''. Description The type species is ''Dolichoderus attelaboides''. Worker ants in this genus have a body length that is typically about four millimetres and can be recognised by their thick, inflexible and strongly sculptured integument. There is a flange on the underside of the head near the base of the mandibles which is saw-like in some species. The longitudinal suture in the central plate of the metathorax is deeply impressed. The propodeum or first abdominal segment has the posterior face distinctly concave when viewed from the side. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Richard Lydekker
Richard Lydekker (; 25 July 1849 – 16 April 1915) was an English naturalist, geologist and writer of numerous books on natural history. Biography Richard Lydekker was born at Tavistock Square in London. His father was Gerard Wolfe Lydekker, a barrister-at-law with Dutch ancestry. The family moved to Harpenden Lodge soon after Richard's birth. He was educated at Trinity College, Cambridge, where he took a first-class in the Natural Science tripos (1872). In 1874 he joined the Geological Survey of India and made studies of the vertebrate palaeontology of northern India (especially Kashmir). He remained in this post until the death of his father in 1881. His main work in India was on the Siwalik palaeofauna; it was published in ''Palaeontologia Indica''. He was responsible for the cataloguing of the fossil mammals, reptiles, and birds in the Natural History Museum (10 vols., 1891). He named a variety of taxa including the golden-bellied mangabey; as a taxon authority he is nam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Argyrosaurus
''Argyrosaurus'' ( ) is a genus of titanosaurian sauropod dinosaur that lived about 70 million years ago, during the Late Cretaceous Period of what is now Argentina. Discovery and naming The type species, ''Argyrosaurus superbus'', was formally described by Richard Lydekker in 1893. The holotype specimen of ''Argyrosaurus superbus'' is a huge left forelimb, MLP 77-V-29-1. found at Chico River, a Campanian/Maastrichtian horizon in the Lago Colhué Huapi Formation. The material includes the humerus, ulna, radius, and all five metacarpals. Recent stratigraphic information from the Lago Colhue Huapi Formation has the area that the holotype was collected from being a more probable early late Maastrichtian age instead of early Coniacian. When discovered, the forelimb was apparently a part of a complete skeleton, however, during excavation the rest of the remains were completely destroyed. In the same publication, Lydekker assigned a partial left femur from Chubut Province, MLP 21, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2021 In Paleoichthyology
This list of fossil fish research presented in 2021 is a list of new taxa of jawless vertebrates, placoderms, acanthodians, fossil cartilaginous fishes, bony fishes, and other fishes that were described during the year, as well as other significant discoveries and events related to paleoichthyology that occurred in 2021. Jawless vertebrates Jawless fishes research * A study on the phylogenetic relationships of cyathaspidids is published by Elliott, Lassiter & Blieck (2021). * Miyashita ''et al.'' (2021) report larval and juvenile forms of four stem lampreys from the Paleozoic era ('' Hardistiella'', '' Mayomyzon'', '' Pipiscius'' and ''Priscomyzon''), including a hatchling-to-adult growth series of ''Priscomyzon'', and report that the studied larvae display features that are otherwise unique to adult modern lampreys, and lack the defining traits of ammocoetes. * A study on the anatomy and likely feeding ecology of ''Mesomyzon mengae'', based on data from new, well-preserved s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Catostomidae
The Catostomidae are the suckers of the order Cypriniformes, with about 78 species in this family of freshwater fishes. The Catostomidae are almost exclusively native to North America. The only exceptions are ''Catostomus catostomus,'' found in both North America and Russia, and ''Myxocyprinus asiaticus'' found only in China. In the Ozarks they are a common food fish and a festival is held each year to celebrate them. ''Ictiobus cyprinellus'' can reach an age up to 112 years, making it the oldest known freshwater teleost. Description and biology The mouths of these fish are most commonly located on the underside of their head ( subterminal), with thick, fleshy lips. Most species are less than in length, but the largest species (''Ictiobus'' and '' Myxocyprinus'') can surpass . They are distinguished from related fish by having a long pharyngeal bone in the throat, containing a single row of teeth. Catostomids are most often found in rivers, but can be found in any freshwate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Allenby Formation
The Allenby formation is a sedimentary rock formation in British Columbia which was deposited during the Ypresian stage of the Early Eocene. It consists of conglomerates, sandstones with interbedded shales and coal. The shales contain an abundance of insect, fish and plant fossils known from 1877 and onward, while the Princeton Chert was first indented in the 1950's and is known from anatomically preserved plants. There are several notable fossil producing localities in the Princeton & Tulameen basins. Historical collection sites included Nine Mile Creek, Vermilian Bluffs, and Whipsaw Creek, while modern sites include One Mile Creek, Pleasant Valley, Thomas Ranch, and the Princeton Chert. Extent and correlation The Allenby is estimated to have an overall extent of approximately , though actual outcroppings of the formation make up less than 1% of the formation, while other exploratory contact is via boreholes and mines. The half-graben which contains the formation is s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amyzon Brevipinne
''Amyzon'' is an extinct genus belonging to the sucker family Catostomidae first described in 1872 by E. D. Cope. There are six valid species in the genus. ''Amyzon'' are found in North American fossil sites dated from the Early Eocene in Montana and Washington USA, as well as the British Columbian sites at McAbee Fossil Beds, Driftwood Canyon, and the " Horsefly shale", as well as Early Oligocene sites in Nevada USA. One Middle Eocene species is known from the Xiawanpu Formation of China. The Ypresian species ''A. brevipinne'' of the Allenby Formation was redescribed in 2021 and moved to a separate monotypic genus '' Wilsonium''. Species There are six valid species included in ''Amyzon'' with up to nine species having been described. * ''A. aggregatum'' Early Eocene (Ypresian), Horsefly Beds, Horsefly, B.C. * ''A. commune'' late Eocene Florissant Formation, Colorado (junior synonyms ''A. fusiforme'' Cope, 1875 & ''A. pandatum'' Cope, 1874 ) * ''A. gosiutensis'' Eocene Gree ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radoboj
Radoboj is a village and municipality in Krapina-Zagorje County in Croatia. In the 2011 census, the total population was 3,387, in the following settlements: * Bregi Radobojski, population 445 * Gorjani Sutinski, population 145 * Gornja Šemnica, population 627 * Jazvine, population 382 * Kraljevec Radobojski, population 49 * Kraljevec Šemnički, population 117 * Orehovec Radobojski, population 282 * Radoboj, population 1,282 * Strahinje Radobojsko, population 58 In the 2011 census, 99.0% of the population were Croats. Fossil site Radoboj is particularly famous as a major fossil site. During the 19th Century a large number of fossils from the Miocene were excavated here. Especially notable are the well preserved insects fossils which were described by the Swiss palaeontologist Oswald Heer. Most of this type material is currently in Landesmuseum Joanneum, Graz, there is also considerable material from Radoboj in the Natural History Museum in Zagreb Zagreb ( , ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Burdigalian
The Burdigalian is, in the geologic timescale, an age (geology), age or stage (stratigraphy), stage in the early Miocene. It spans the time between 20.43 ± 0.05 annum, Ma and 15.97 ± 0.05 Ma (million years ago). Preceded by the Aquitanian (stage), Aquitanian, the Burdigalian was the first and longest warming period of the MioceneEdward Petuch, Ph.D. Florida Atlantic University, Department of Geosciences. and is succeeded by the Langhian. Stratigraphic definition The name Burdigalian comes from ''Burdigala'', the Latin name for the city of Bordeaux, France. The Burdigalian Stage was introduced in scientific literature by Charles Depéret in 1892. The base of the Burdigalian is at the first appearance of foram species ''Globigerinoides altiaperturus'' and the top of magnetic chronozone C6An. , an official GSSP for the Burdigalian had not yet been assigned. The top of the Burdigalian (the base of the Langhian) is defined by the first appearance of foram species ''Praeorbulina gl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Emplastus
''Emplastus'' is an extinct morphogenus of ants in the subfamily Dolichoderinae, known from fossils found in Asia and Europe. The genus contains twelve species described from sites in England, Eastern Europe and Far Eastern Russia. Distribution ''Emplastus'' is known from a number of adult fossil specimens which are composed of partial adult males, female workers and queens. The first specimens described were preserved as compression fossils in sedimentary rock from the Radoboj area of what is now Croatia. The deposits are the result of sedimentation in an inland sea basin, possibly a shallow lagoon environment, during the Burdigalian of the Early Miocene. Along with the ''Emplastus'' species, a diverse assemblage of several hundred species of insects have been preserved in the sediments, along with fish and algae. The fossil impressions are preserved in micrite limestones, resulting in low quality preservation of fine details. Another series of species were described fro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
