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Onychodontida
Onychodontiformes (also known as Onychodontida and Struniiformes) is an order of prehistoric sarcopterygian fish that lived during the Devonian period. The onychodontiforms are generally regarded as early-diverging members of the coelacanth lineage. Phylogeny The following cladogram is adapted from Mondéjar-Fernández (2020). The study recovered Onychodontiformes as a paraphyletic Paraphyly is a taxonomic term describing a grouping that consists of the grouping's last common ancestor and some but not all of its descendant lineages. The grouping is said to be paraphyletic ''with respect to'' the excluded subgroups. In co ... group, which is shown in green: References External links Onychodontiformes at Palaeos Prehistoric lobe-finned fish Prehistoric fish orders Devonian bony fish Early Devonian first appearances Famennian extinctions Paraphyletic groups {{paleo-lobefinned-fish-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Qingmenodus
''Qingmenodus'' is a genus of prehistoric lobe-finned fish. Fossils of ''Qingmenodus'' were found in China and date back to the Early Devonian period Period may refer to: Common uses * Period (punctuation) * Era, a length or span of time *Menstruation, commonly referred to as a "period" Arts, entertainment, and media * Period (music), a concept in musical composition * Periodic sentence (o .... ''Qingmenodus'' reveals the first well-ossified otoccipital braincase in onychodonts. Palaeontologists believe that ''Qingmenodus'' was one of the oldest onychodont fish. Relationships A study of additional new fossils of ''Qingmenodus'' in a larger phylogenetic analysis of Sarcopterygii including new neurocranial characters supported placing onychodontiforms as stem-coelacanths, within Actinistia.Lu, J., et al. 2016. A Devonian predatory fish provides insights into the early evolution of modern sarcopterygians. ''Science Advances'', vol. 2, no. 6, e1600154, doi:10.1126/sciadv.16 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Onychodus
''Onychodus'' (, from Greek language, Greek meaning "claw-tooth") is a genus of prehistoric lobe-finned fish which lived during the Devonian period (geology), Period (Eifelian - Famennian faunal stages, stages, around 374 to 397 million years ago). It is one of the best known of the group of onychodontida, onychodontiform fishes. Scattered fossil teeth of ''Onychodus'' were first described from Ohio in 1857 by John Strong Newberry. Other species were found in Australia, England, Norway and Germany showing that it had a widespread range. ''Onychodus'' was about 2 to 4 meters in length and was a pelagic animal. Like other onychodontiformes, it had a pair of tooth spirals (parasymphysial tooth whorls) bearing tusk-like teeth. The most well-preserved Biological specimen, specimen of ''Onychodus'' has been found in the Gogo Formation of Western Australia giving palaeontologists more information about the structure of the fish. Other species of ''Onychodus'' are known only from poor ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lochkovian
The Lochkovian is one of three faunal stages in the Early Devonian Epoch. It lasted from 419.2 ± 3.2 million years ago to 410.8 ± 2.8 million years ago. It marked the beginning of the Devonian Period, and was followed by the Pragian Stage. It is named after the village of Lochkov in the Czech Republic, now part of the city of Prague. The GSSP is located within the Lochkow Formation at the Klonk Section in Prague. In North America the Lochkovian Stage is represented by Gedinnian or Helderbergian time. References Lochkovian, Early Devonian {{geochronology-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Early Devonian First Appearances
Early may refer to: Places in the United States * Early, Iowa, a city * Early, Texas, a city * Early Branch, a stream in Missouri * Early County, Georgia * Fort Early, Georgia, an early 19th century fort Music * Early B, stage name of Jamaican dancehall and reggae deejay Earlando Arrington Neil (1957–1994) * Early James, stage name of American singer-songwriter Fredrick Mullis Jr. (born 1993) * ''Early'' (Scritti Politti album), 2005 * ''Early'' (A Certain Ratio album), 2002 * Early Records, a record label Other uses * Early (name), a list of people and fictional characters with the given name or surname * Early effect, an effect in transistor physics * Early, a synonym for ''hotter'' in stellar classification In astronomy, stellar classification is the classification of stars based on their stellar spectrum, spectral characteristics. Electromagnetic radiation from the star is analyzed by splitting it with a Prism (optics), prism or diffraction gratin ... See also * * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Devonian Bony Fish
The Devonian ( ) is a geologic period and system of the Paleozoic era during the Phanerozoic eon, spanning 60.3 million years from the end of the preceding Silurian period at million years ago ( Ma), to the beginning of the succeeding Carboniferous period at Ma. It is the fourth period of both the Paleozoic and the Phanerozoic. It is named after Devon, South West England, where rocks from this period were first studied. The first significant evolutionary radiation of life on land occurred during the Devonian, as free- sporing land plants (pteridophytes) began to spread across dry land, forming extensive coal forests which covered the continents. By the middle of the Devonian, several groups of vascular plants had evolved leaves and true roots, and by the end of the period the first seed-bearing plants ( pteridospermatophytes) appeared. This rapid evolution and colonization process, which had begun during the Silurian, is known as the Silurian-Devonian Terrestrial Revolu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prehistoric Fish Orders
Prehistory, also called pre-literary history, is the period of human history between the first known use of stone tools by hominins million years ago and the beginning of recorded history with the invention of writing systems. The use of symbols, marks, and images appears very early among humans, but the earliest known writing systems appeared years ago. It took thousands of years for writing systems to be widely adopted, with writing having spread to almost all cultures by the 19th century. The end of prehistory therefore came at different times in different places, and the term is less often used in discussing societies where prehistory ended relatively recently. It is based on an old conception of history that without written records there could be no history. The most common conception today is that history is based on evidence, however the concept of prehistory hasn't been completely discarded. In the early Bronze Age, Sumer in Mesopotamia, the Indus Valley Civilis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Onychodontida
Onychodontiformes (also known as Onychodontida and Struniiformes) is an order of prehistoric sarcopterygian fish that lived during the Devonian period. The onychodontiforms are generally regarded as early-diverging members of the coelacanth lineage. Phylogeny The following cladogram is adapted from Mondéjar-Fernández (2020). The study recovered Onychodontiformes as a paraphyletic Paraphyly is a taxonomic term describing a grouping that consists of the grouping's last common ancestor and some but not all of its descendant lineages. The grouping is said to be paraphyletic ''with respect to'' the excluded subgroups. In co ... group, which is shown in green: References External links Onychodontiformes at Palaeos Prehistoric lobe-finned fish Prehistoric fish orders Devonian bony fish Early Devonian first appearances Famennian extinctions Paraphyletic groups {{paleo-lobefinned-fish-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Latimeria
''Latimeria'' is a rare genus of fish which contains the two only living species of coelacanth. It includes two Extant taxon, extant species: the West Indian Ocean coelacanth (''Latimeria chalumnae'') and the Indonesian coelacanth (''Latimeria menadoensis''). They follow the oldest known living Lineage (evolution), lineage of Sarcopterygii (lobe-finned fish and tetrapods), which means they are more closely related to lungfish and tetrapods (amphibians, reptiles and mammals) than to the common ray-finned fishes and Chondrichthyes, cartilaginous fishes. They are found along the coastlines of the Indian Ocean and Indonesia. Since there are only two known species of coelacanth and both are threatened, it is one of the most endangered genera of animals in the world. The West Indian Ocean coelacanth is a critically endangered species. Biological characteristics Based on growth rings in the creatures' ear bones (otoliths), scientists infer that individual coelacanths may live as long ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diplocercides
''Diplocercides'' is an extinct genus of marine coelacanth which lived during the Late Devonian period. Taxonomy The following species are known: * ''D. heiligenstockiensis'' Jessen, 1966 - Frasnian of Germany ( Bergisch Gladbach Formation) * ''D. kayseri'' (von Koenen, 1895) - late Frasnian of Germany ( Kellwasserkalk Formation) and early to middle Famennian of Poland (Holy Cross Mountains) (=''Nesides schmidti'' Stensio 1937) * ''D. jaekeli'' Stensiö, 1922 - Frasnian of Germany (Bergisch Gladbach Formation) Indeterminate remains are known from the Frasnian of Iran. Specimens from South Africa that were formerly assigned to this genus have since been described in their own genus, '' Serenichthys''. Another alleged specimen from the Frasnian-aged Gogo Formation of Australia was also later described in its own genus, '' Ngamugawi''. The species ''D. davisi'' Moy-Thomas, 1937, from the Mississippian of Ireland, which was formerly thought to be the only post-Devonian species, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Miguashaia
''Miguashaia'' is a genus of prehistoric lobe-finned fish which lived during the Devonian period. ''Miguashaia'' is the most primitive coelacanth fish. See also List of prehistoric bony fish This list of prehistoric bony fish is an attempt to create a comprehensive listing of all Genus, genera from the fossil record that have ever been considered to be bony fish (class Osteichthyes), excluding purely vernacular terms. The list includ ... References Prehistoric lobe-finned fish genera Late Devonian sarcopterygians Devonian sarcopterygians of North America {{paleo-lobefinned-fish-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gavinia
''Gavinia'' is an extinct genus of prehistoric sarcopterygian or lobe-finned fish. See also * Sarcopterygii * List of sarcopterygians * List of prehistoric bony fish This list of prehistoric bony fish is an attempt to create a comprehensive listing of all Genus, genera from the fossil record that have ever been considered to be bony fish (class Osteichthyes), excluding purely vernacular terms. The list includ ... References Prehistoric lobe-finned fish genera Middle Devonian sarcopterygians Devonian sarcopterygians of Australia {{paleo-lobefinned-fish-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
