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Rhadinichthys
''Rhadinichthys'' is an extinct genus of prehistoric bony fish. It is known from several species that lived in the Late Devonian epoch (geology), epoch, the Carboniferous period (geology), period and the Cisuralian epoch (early Permian) in what is now Europe, South Africa, and North and South America. Some isolated scales from the Cisuralian of Europe (Belgium, France, Russia) were also referred to this genus. ''Rhadinichthys'' belongs to the family (biology), family Rhadinichthyidae together with ''Cycloptychius'', ''Cyranorhis'', ''Mentzichthys'' and ''Wendyichthys''. Species The following species are referred to the genus ''Rhadinichthys''. *''R. ornatissimus'' (Agassiz, 1835) (type species) [''R. lepturus'' Traquair, 1877] *''R. alberti'' (Jackson, 1851) *''R. argentinicus'' Tornquist, 1904 *''R. brevis'' Traquair, 1877 *''R. canobiensis'' Traquair, 1909 [''R. geikei'' Traquair, 1881; ''R. delicatulus'' Traquair, 1881; ''R. elegantulus'' Traquair, 1890] *''R. carinatus'' (A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Palaeonisciformes
The Palaeonisciformes (Palaeoniscida) are an extinct order of early ray-finned fishes ( Actinopterygii). Palaeonisciformes ''sensu lato'' first appeared in the fossil record in the Late Silurian and last appeared in the Late Cretaceous. The name is derived from the Ancient Greek words παλαιός (''palaiós'', ancient) and ὀνίσκος (''oniskos'', 'cod-fish' or woodlouse), probably pertaining to the organization of the fishes' scales, similar to the exoskeletal plating of woodlice. In an early interpretation of the group, the Palaeonisciformes are divided in two suborders: Palaeoniscoidei (includes '' Palaeoniscum'' and fossil taxa with a broadly similar appearance) and Platysomoidei (includes '' Platysomus'' and other deep-bodied early actinopterygians). These groupings are considered paraphyletic today. In the cladistic sense, Palaeonisciformes '' sensu stricto'' should only refer to the Permian ''Palaeoniscum'', the name giving taxon, and all other taxa that fall ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Moythomasia
''Moythomasia'' (named for James Alan Moy-Thomas) is an extinct genus of early ray-finned fish from the Devonian period of Europe and Australia. ''Moythomasia'' was a small freshwater fish, long. It had relatively large eyes, presumably to find prey in murky water. Its body was covered in specialized ganoid scale A fish scale is a small rigid plate that grows out of the skin of a fish. The skin of most jawed fishes is covered with these protective scales, which can also provide effective camouflage through the use of reflection and colouration, as we ...s; the upper side of each scale sported a small pin that perfectly fit into the hollow lower side of the next scale. This allowed the fish to be both armored and flexible. Species * ''M. devonica'' (Clarke, 1885) Palaeoniscus.html" ;"title="'Palaeoniscus">'Palaeoniscus devonicus'' Clarke, 1885; ''Rhadinichthys devonicus'' (Clarke, 1885)] * ''M. durgaringa'' Gardiner & Bartram, 1977 * ''M. lineata'' Choo, 2015 * ''M. nit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kentuckia
''Kentuckia'' is an extinct genus of prehistoric bony fish. Taxonomy * Family Kentuckiidae Gardiner 1993 ** Genus ''Kentuckia'' Rayner 1951 *** ''K. deani'' (Eastman 1907) 'Rhadinichthys deani'' Eastman 1907*** ''K. hlavini'' Dunkle 1964 See also * Prehistoric fish The evolution of fish began about 530 million years ago during the Cambrian explosion. It was during this time that the early chordates developed the skull and the vertebral column, leading to the first craniates and vertebrates. The first fis ... * List of prehistoric bony fish References Palaeonisciformes {{palaeonisciformes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Late Devonian
The Devonian ( ) is a geologic period and system of the Paleozoic era, spanning 60.3 million years from the end of the Silurian, million years ago (Mya), to the beginning of the Carboniferous, Mya. It is named after Devon, England, where rocks from this period were first studied. The first significant adaptive radiation of life on dry land occurred during the Devonian. Free-sporing vascular plants began to spread across dry land, forming extensive forests which covered the continents. By the middle of the Devonian, several groups of plants had evolved leaves and true roots, and by the end of the period the first seed-bearing plants appeared. The arthropod groups of myriapods, arachnids and hexapods also became well-established early in this period, after starting their expansion to land at least from the Ordovician period. Fish reached substantial diversity during this time, leading the Devonian to often be dubbed the Age of Fishes. The placoderms began dominating al ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Period (geology)
The geologic time scale, or geological time scale, (GTS) is a representation of time based on the rock record of Earth. It is a system of chronological dating that uses chronostratigraphy (the process of relating strata to time) and geochronology (scientific branch of geology that aims to determine the age of rocks). It is used primarily by Earth scientists (including geologists, paleontologists, geophysicists, geochemists, and paleoclimatologists) to describe the timing and relationships of events in geologic history. The time scale has been developed through the study of rock layers and the observation of their relationships and identifying features such as lithologies, paleomagnetic properties, and fossils. The definition of standardized international units of geologic time is the responsibility of the International Commission on Stratigraphy (ICS), a constituent body of the International Union of Geological Sciences (IUGS), whose primary objective is to precisely define ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Canobius
''Canobius'' (named for Canobie, the district where it was discovered) is an extinct genus of early ray-finned fish that lived in the Carboniferous period of Europe. ''Canobius'' was a small fish, in length. Compared with its earlier relatives, it had specialized jawbones and hyomandibulars which attached the upper jaw to the braincase, meaning that the jaws were hung vertically under the braincase. This allowed ''Canobius'' to open its jaws wider and expand its gill slits further at the same time. In turn, this meant that the fish could take in more oxygen, making it a more active creature. ''Canobius'' is presumed to have fed on plankton Plankton are the diverse collection of organisms found in water (or air) that are unable to propel themselves against a current (or wind). The individual organisms constituting plankton are called plankters. In the ocean, they provide a crucia ... which is filtered from the water using its small teeth and gills. References Pal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sir Philip Grey Egerton, 10th Baronet
Sir Philip de Malpas Grey Egerton, 10th Baronet FRS (13 November 1806 – 5 April 1881) was an English palaeontologist and Conservative politician from the Egerton family. He sat in the House of Commons variously between 1830 and his death in 1881. Early life Egerton was the son of Sir Philip Grey Egerton, 9th Baronet and his wife Rebecca Du Pre, daughter of Josias Du Pre of Wilton Park, Beaconsfield. He was educated at Eton and Christ Church, Oxford, where he graduated BA in 1828. While at college his interest in geology was aroused by the lectures of William Buckland, and by his acquaintance with William D. Conybeare. He inherited the baronetcy on the death of his father in 1829. He was elected Fellow of the Royal Society in 1831, and was a trustee of the British Museum. When it was first established in 1834 he became a trustee of the Senate of the University of London. Geological work While travelling in Switzerland with Lord Cole (later to be 3rd Earl of Ennis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Type Species
In zoological nomenclature, a type species (''species typica'') is the species name with which the name of a genus or subgenus is considered to be permanently taxonomically associated, i.e., the species that contains the biological type specimen(s). Article 67.1 A similar concept is used for suprageneric groups and called a type genus. In botanical nomenclature, these terms have no formal standing under the code of nomenclature, but are sometimes borrowed from zoological nomenclature. In botany, the type of a genus name is a specimen (or, rarely, an illustration) which is also the type of a species name. The species name that has that type can also be referred to as the type of the genus name. Names of genus and family ranks, the various subdivisions of those ranks, and some higher-rank names based on genus names, have such types. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cyranorhis
''Cyranorhis'' is an extinct genus of prehistoric bony fish that lived during the Serpukhovian age of the Carboniferous period in what is now Montana, United States. Classification Based on the cladistic analysis by Ren & Xu, ''Cyranorhis'' was recovered in a sister group relationship with the Triassic ''Pteronisculus''. See also * Prehistoric fish * List of prehistoric bony fish A ''list'' is any set of items in a row. List or lists may also refer to: People * List (surname) Organizations * List College Albert A. List College of Jewish Studies, known simply as List College, is the undergraduate school of the J ... References Prehistoric bony fish genera Palaeonisciformes {{paleo-bony-fish-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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