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Cavusgnathidae
Cavusgnathidae is an extinct family of conodonts in the order Ozarkodinida. Genera Genera are, * †'' Adetognathus'' * †''Cavusgnathus'' * †''Clydagnathus'' * †'' Ferganaegnathodus'' * †'' Neolochriea'' * †'' Patrognathus'' * †''Pseudopolygnathus ''Pseudopolygnathus'' is an extinct genus of conodonts in the family Polygnathidae. ''Pseudopolygnathus granulobatus'' is from the Late Devonian or Early Carboniferous Early may refer to: History * The beginning or oldest part of a defined ...'' * †'' Rhachistognathus'' * †'' Scaphignathus'' * †'' Taphrognathus'' * †'' Weyerognathus'' References External links * * Ozarkodinida families {{Conodont-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polygnathacea
Polygnathacea is an extinct superfamily of conodonts. Families Families are, * † Cavusgnathidae Clark ''et al.'', 1981 * †Palmatolepidae Müller, 1956 * †Polygnathidae Polygnathidae is an extinct family of conodonts. References External links * Polygnathidaeat fossilworks Fossilworks is a portal which provides query, download, and analysis tools to facilitate access to the Paleobiology Database, a la ... Bassler, 1925 References * Ontogeny and trophic types of some Tournaisian Polygnathacea (Conodonta). AV Zhuravlev - Courier Forschungsinstitut Senckenberg, 1995 * Variation in the outline and distribution of epithelial cell imprints on the surface of polygnathacean conodont elements. AV Zhuravlev - Lethaia, 2001 - Wiley Online Library * The architecture and function of Carboniferous polygnathacean conodont apparatuses. RJ Aldridge, MP Smith, RD Norby… - Palaeobiology of …, 1987 - Halsted Press External links * Polygnathaceaat fossilworks.org (ret ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Conodont
Conodonts (Greek ''kōnos'', "cone", + ''odont'', "tooth") are an extinct group of agnathan (jawless) vertebrates resembling eels, classified in the class Conodonta. For many years, they were known only from their tooth-like oral elements, which are usually found in isolation and are now called conodont elements. Knowledge about soft tissues remains limited. They existed in the world's oceans for over 300 million years, from the Cambrian to the beginning of the Jurassic. Conodont elements are widely used as index fossils, fossils used to define and identify geological periods. The animals are also called Conodontophora (conodont bearers) to avoid ambiguity. Discovery and understanding of conodonts The teeth-like fossils of the conodont were first discovered by Heinz Christian Pander and the results published in Saint Petersburg, Russia, in 1856. The name ''pander'' is commonly used in scientific names of conodonts. It was only in the early 1980s that the first fossil evidence of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Conodont
Conodonts (Greek ''kōnos'', "cone", + ''odont'', "tooth") are an extinct group of agnathan (jawless) vertebrates resembling eels, classified in the class Conodonta. For many years, they were known only from their tooth-like oral elements, which are usually found in isolation and are now called conodont elements. Knowledge about soft tissues remains limited. They existed in the world's oceans for over 300 million years, from the Cambrian to the beginning of the Jurassic. Conodont elements are widely used as index fossils, fossils used to define and identify geological periods. The animals are also called Conodontophora (conodont bearers) to avoid ambiguity. Discovery and understanding of conodonts The teeth-like fossils of the conodont were first discovered by Heinz Christian Pander and the results published in Saint Petersburg, Russia, in 1856. The name ''pander'' is commonly used in scientific names of conodonts. It was only in the early 1980s that the first fossil evidence of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ozarkodinida
Ozarkodinida is an extinct conodont order. It is part of the clade Prioniodontida, also known as the "complex conodonts". Name Ozarkodinida is named after the Ozark Mountains of Missouri Missouri is a U.S. state, state in the Midwestern United States, Midwestern region of the United States. Ranking List of U.S. states and territories by area, 21st in land area, it is bordered by eight states (tied for the most with Tennessee ..., United States. Elements The feeding apparatus of ozarkodinids is composed at the front of an axial Sa element, flanked by two groups of four close-set elongate Sb and Sc elements which were inclined obliquely inwards and forwards. Above these elements lay a pair of arched and inward pointing (makellate) M elements. Behind the S-M array lay transversely oriented and bilaterally opposed (pectiniform, i.e. comb-shaped) Pb and Pa elements. References External links * * Prehistoric jawless fish orders {{Conodont-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taphrognathus
''Taphrognathus'' is an extinct genus of conodonts from the Dinantian (Lower Carboniferous).The Dinantian Taphrognathus transatlanticus conodont Range Zone of Great Britain and Atlantic Canada. Peter H. Von Bitter and Ronald L. Austin, Palaeontology, Volume 27, Part 1, January 1984, pages 95–111 Synonyms In 1947 the name ''Taphrognathus'' was also used to describe a prehistoric amphibian from the Middle Triassic of Arizona, but the amphibian was renamed ''Hadrokkosaurus ''Hadrokkosaurus'' is an extinct genus of brachyopid temnospondyl amphibian from the Middle Triassic of the southwestern United States. It includes a single species, ''Hadrokkosaurus bradyi'', known from the Moenkopi Formation of Arizona ...'' in 1957 after the synonymy was realized. See also References Ozarkodinida genera Carboniferous fish of North America Mississippian conodonts Fossil taxa described in 1941 Taxa named by Edward Branson Taxa named by Maurice Mehl {{Cono ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Patrognathus
''Patrognathus'' is an extinct genus of conodonts. Use in stratigraphy The Tournaisian The Tournaisian is in the ICS geologic timescale the lowest stage or oldest age of the Mississippian, the oldest subsystem of the Carboniferous. The Tournaisian age lasted from Ma to Ma. It is preceded by the Famennian (the uppermost stage ..., the oldest age of the Mississippian (also known as Lower Carboniferous) contains eight conodont biozones, four of which contain ''Patrognathus'' species: * the zone of '' Siphonodella quadruplicata'' and ''Patrognathus andersoni'' (upper zone of ''Patrognathus andersoni'') * the lower zone of ''Patrognathus andersoni'' * the zone of ''Patrognathus variabilis'' * the zone of ''Patrognathus crassus'' References External links * * Ozarkodinida genera Mississippian conodonts Tournaisian life Fossil taxa described in 1969 Mississippian first appearances Mississippian extinctions {{conodont-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clydagnathus
''Clydagnathus'' is a genus of conodonts in the family Cavusgnathidae. Species are known from the Carboniferous of India and the 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, whe ... of Morocco. References External links * Ozarkodinida genera Devonian conodonts Mississippian conodonts Fossil taxa described in 1969 {{conodont-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pseudopolygnathus
''Pseudopolygnathus'' is an extinct genus of conodonts in the family Polygnathidae. ''Pseudopolygnathus granulobatus'' is from the Late Devonian or Early Carboniferous Early may refer to: History * The beginning or oldest part of a defined historical period, as opposed to middle or late periods, e.g.: ** Early Christianity ** Early modern Europe Places in the United States * Early, Iowa * Early, Texas * Early ... of Italy. The three subspecies of ''P. granulosus'', ''P. g. laepensis'', ''P. g. salawinensis'' and ''P. g. maepoensis'' are from the Late Devonian of Thailand.Late Devonian conodonts from northwestern Thailand. Norman M. Savage (2013), Bourland Printing / Trinity Press. pages 1–48, . References External links * * Ozarkodinida genera Late Devonian animals Late Devonian fish Devonian conodonts Mississippian conodonts Fossil taxa described in 1934 {{Conodont-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
