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Crossognathiform
Crossognathiformes is an extinct order of ray-finned fish that lived from the Late Jurassic to the Eocene. Its phylogenetic placement is disputed; some authors have recovered it as part of the teleost stem group, while others place it in a basal position within crown group Teleostei. Other placements have found it to be polyphyletic, with Varasichthyidae being stem-group teleosts whereas the other, "true" crossognathiforms are crown-group teleosts within Teleocephala. The oldest definitive crossognathiforms are known from the Late Jurassic (Oxfordian (stage), Oxfordian) of Chile. They diversified afterwards and became a dominant group of marine fish throughout much of the Cretaceous. The last surviving member was the pachyrhizodontid ''Platinx'' from the Eocene. Classification Order Crossognathiformes Taverne, 1989 * ''Bavarichthys'' Arratia & Tischlinger, 2010 * ''Kradimus'' Veysey ''et al.'', 2020 * Family Varasichthyidae Arratia, 1981 ** ''Bobbichthys'' Arratia, 1986 ** ''Dome ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chongichthys
''Chongichthys'' is an extinct genus of marine Actinopterygii, ray-finned fish that lived during the Oxfordian (stage), Oxfordian stage of the Late Jurassic epoch. It contains one species, ''C. dentatus'' from the Quebrada El Profeta of Chile. It is named after Chilean geologist Guillermo Chong. Its phylogenetic relationships have long been enigmatic, with it initially being classified as an indeterminate teleost, or more specifically an indeterminate Clupeocephala, clupeocephalan. However, more recent studies have recovered it as a basal Crossognathiformes, crossognathiform. It is one of the earliest crossognathiforms known. See also * Prehistoric fish * List of prehistoric bony fish References Crossognathiformes Late Jurassic bony fish Oxfordian genera Jurassic fish of South America Jurassic Chile Fossils of Chile Fossil taxa described in 1982 {{jurassic-fish-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bobbichthys
''Bobbichthys'' is an extinct genus of marine ray-finned fish that lived in what is now Chile during the Oxfordian stage of the Late Jurassic epoch. It was a member of the Varasichthyidae, a family of potentially crossognathiform fish. It was named after paleoichthyologist Bobb Schaefer (1913-2004). 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 Crossognathiformes Monotypic prehistoric ray-finned fish genera Late Jurassic bony fish Jurassic fish of South America Fossils of Chile Oxfordian genera Fossil taxa described in 1986 {{Paleo-bony-fish-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Protoclupea
''Protoclupea'' is an extinct genus of ray-finned fish that lived from the Oxfordian to the early Tithonian stage of the Late Jurassic epoch. It contains one species, ''Protoclupea chilensis'', fossils of which have been found in the Domeyko Range of Antofagasta Region, northern Chile. The genus has been placed in the family Varasichthyidae together with the genera ''Bobbichthys ''Bobbichthys'' is an extinct genus of marine ray-finned fish that lived in what is now Chile during the Oxfordian stage of the Late Jurassic epoch. It was a member of the Varasichthyidae, a family of potentially crossognathiform fish. It was ...'', '' Domeykos'', '' Luisichthys'' and '' Varasichthys''. References Crossognathiformes Late Jurassic fish Oxfordian genera Tithonian genera Jurassic fish of South America Jurassic Chile Fossils of Chile Fossil taxa described in 1975 {{jurassic-fish-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Platinx
''Platinx'' is an extinct genus of marine ray-finned fish that inhabited the northern Tethys Ocean during the early to middle Eocene. It was the last surviving member of the ancient order Crossognathiformes, which was a dominant and successful group throughout the preceding Mesozoic era. It contains a single species, ''P. macropterus'', whose remains are primarily known from the late Ypresian-aged rocks of Monte Bolca, Italy. However, specimens have also been recovered from the earliest-Ypresian Danata Formation of Turkmenistan (sometimes placed in their own distinct species, ''P. cognitus'' Daniltshenko, 1968, although these do not appear to be distinct enough from ''P. macropterus''), as well as incomplete remains from the middle Eocene of Syria. The extinct bonytongues ''Monopteros A monopteros (Ancient Greek: , from: μόνος, 'only, single, alone', and , 'wing'), also called a monopteron or cyclostyle, is a circular colonnade supporting a roof but without any walls.Curl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crossognathus
''Crossognathus'' is an extinct genus of marine ray-finned fish from the Early Cretaceous of Europe. It is the type genus of the order Crossognathiformes and the family Crossognathidae. The following species are known: * †''C. danubiensis'' Cavin & Grigorescu, 2005 - Middle Albian of Romania * †''C. sabaudianus'' Pictet, 1858 (type species) - Barremian of Voiron and late Albian of Vallentigny, France; Barremian of Hildesheim & early Aptian of Helgoland Heligoland (; , ; Heligolandic Frisian: , , Mooring Frisian: , ) is a small archipelago in the North Sea. The islands were historically possessions of Denmark, then became possessions of the United Kingdom from 1807 to 1890. Since 1890, the ..., Germany References Crossognathiformes Prehistoric ray-finned fish genera Barremian genus first appearances Aptian genera Albian genus extinctions Early Cretaceous fish of Europe Early Cretaceous bony fish Fossils of Germany Fossils of France Fossils of Roma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Varasichthys
''Varasichthys'' is an extinct genus of ray-finned fish that lived during the Oxfordian stage of the Late Jurassic epoch. It contains one species, ''Varasichthys ariasi'', fossils of which have been found in the Domeyko Range of Antofagasta Region, northern Chile. It has been placed in the family Varasichthyidae together with the genera ''Bobbichthys'', '' Domeykos'', '' Luisichthys'' and ''Protoclupea ''Protoclupea'' is an extinct genus of ray-finned fish that lived from the Oxfordian to the early Tithonian stage of the Late Jurassic epoch. It contains one species, ''Protoclupea chilensis'', fossils of which have been found in the Domeyko Ra ...''. References Crossognathiformes Prehistoric ray-finned fish genera Oxfordian genera Late Jurassic fish Jurassic fish of South America Jurassic Chile Fossils of Chile Fossil taxa described in 1981 {{jurassic-fish-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Domeykos
''Domeykos'' is an extinct genus of marine ray-finned fish that lived in what is now Chile during the Oxfordian stage of the Late Jurassic epoch. It contains one species, ''Domeykos profetaensis'', known from the Quebrada del Profeta of Antofagasta Antofagasta () is a port city in northern Chile, about north of Santiago. It is the capital of Antofagasta Province and Antofagasta Region. According to the 2015 census, the city has a population of 402,669. Once claimed by Bolivia follo .... References External links * Crossognathiformes Prehistoric ray-finned fish genera Oxfordian genera Late Jurassic fish Jurassic fish of South America Jurassic Chile Fossils of Chile Fossil taxa described in 1985 {{Jurassic-fish-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Wiley & Sons
John Wiley & Sons, Inc., commonly known as Wiley (), is an American Multinational corporation, multinational Publishing, publishing company that focuses on academic publishing and instructional materials. The company was founded in 1807 and produces books, Academic journal, journals, and encyclopedias, in print and electronically, as well as online products and services, training materials, and educational materials for undergraduate, graduate, and continuing education students. History The company was established in 1807 when Charles Wiley opened a print shop in Manhattan. The company was the publisher of 19th century American literary figures like James Fenimore Cooper, Washington Irving, Herman Melville, and Edgar Allan Poe, as well as of legal, religious, and other non-fiction titles. The firm took its current name in 1865. Wiley later shifted its focus to scientific, Technology, technical, and engineering subject areas, abandoning its literary interests. Wiley's son Joh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
