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Prioniodontida Genera
Prioniodontida, also known as the "complex conodonts", is a large clade of conodonts that includes two major evolutionary grades; the Prioniodinina and the Ozarkodinina. It includes many of the more famous conodonts, such as the giant ordovician ''Promissum ''Promissum'' is an extinct genus of conodonts, primitive chordates, that lived during the Upper Ordovician period. A conodont, ''Promissum'' had a primitive mouth under its eyes with mineralized teeth, which are both typical for conodonts. It h ...'' (Prioniodinina) from the Soom Shale and the Carboniferous specimens from the Granton Shrimp bed (Ozarkodinina). They are euconodonts, in that their elements are composed of two layers; the crown and the basal body, and are assumed to be a clade. Phylogeny This is a recent cladogram of the Prioniodontida, simplified from Donoghue ''et al.'', (2008). Notes References {{Taxonbar, from=Q6581502 Vertebrate unranked clades ... [...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] |
Idiognathodontidae
Idiognathodontidae is an extinct conodont family.New Pennsylvanian conodonts from Oklahoma. RW Harris and RV Hollingsworth, American Journal of Science, March 1933, Series 5, Vol. 25, no. 147, pages 193-204, Genera are ''Gnathodus'', ''Idiognathodus'', and '' Protognathodus''. References External links Idiognathodontidaeat fossilworks Fossilworks is a portal which provides query, download, and analysis tools to facilitate access to the Paleobiology Database The Paleobiology Database is an online resource for information on the distribution and classification of fossil animals ....org (retrieved 30 April 2016) Ozarkodinida families {{Conodont-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 The Paleobiology Database is an online resource for information on the distribution and classification of fossil animals ....org (retrieved 1 May 2016) Ozarkodinida families {{Conodont-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Palmatolepidae
Palmatolepidae is an extinct conodont family. It is part of the clade Prioniodontida, also known as the "complex conodonts".Conodonts Meet Cladistics: Recovering Relationships and Assessing the Completeness of the Conodont Fossil Record. Philip C J Donoghue, Palaeontology, 44(1), pages 65-93, November 2003, References External links Palmatolepidaeat fossilworks Fossilworks is a portal which provides query, download, and analysis tools to facilitate access to the Paleobiology Database The Paleobiology Database is an online resource for information on the distribution and classification of fossil animals ....org (retrieved 30 April 2016) 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] |
Bactrognathidae
Bactrognathidae is an extinct family of conodonts in the order Prioniodinida. Genera are '' Bactrognathus'', '' Doliognathus'', and '' Staurognathus''. References External links Bactrognathidaeat fossilworks Fossilworks is a portal which provides query, download, and analysis tools to facilitate access to the Paleobiology Database The Paleobiology Database is an online resource for information on the distribution and classification of fossil animals ....org (retrieved 22 April 2016) Conodont families Prioniodinida {{Conodont-stub ... [...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] |
Promissum
''Promissum'' is an extinct genus of conodonts, primitive chordates, that lived during the Upper Ordovician period. A conodont, ''Promissum'' had a primitive mouth under its eyes with mineralized teeth, which are both typical for conodonts. It had a primitive backbone and probably looked like a small eel or large worm, lacking any kind of fins except for perhaps a small one on the tail. It was relatively large for a conodont, reaching about 40 cm (16 inch) in length. Well-preserved specimens were discovered in the Soom shale of South Africa in 1994. ''Promissum'' was probably capable of maintaining a cruising speed, but not of bursts of speed. References External links ''Promissum''at fossilworks Fossilworks is a portal which provides query, download, and analysis tools to facilitate access to the Paleobiology Database The Paleobiology Database is an online resource for information on the distribution and classification of fossil animals .... org (retrieved 30 A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Balognathidae
Balognathidae is an extinct conodont family. Genera Genera are: * †'' Amorphognathus'' * †'' Baltoniodus'' * †'' Birksfeldia'' * †'' Icriodella'' * †'' Notiodella'' * †'' Polyplacognathus'' * †'' Prioniodus'' * †''Promissum'' * †''Pterospathodus'' References External links Balognatidaeat fossilworks Fossilworks is a portal which provides query, download, and analysis tools to facilitate access to the Paleobiology Database The Paleobiology Database is an online resource for information on the distribution and classification of fossil animals ....org (retrieved 8 May 2016) Conodont families Prioniodontida {{conodont-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paracordylodus
''Paracordylodus'' is an extinct genus of conodonts in the clade Prioniodontida, also known as the "complex conodonts". The species ''P. gracilis'' has been recovered from the chert of the Narooma Terrane, a geological structural region on the south coast of New South Wales ) , nickname = , image_map = New South Wales in Australia.svg , map_caption = Location of New South Wales in AustraliaCoordinates: , subdivision_type = Country , subdivision_name = Australia , established_title = Before federation , es ..., Australia. References External links * ''Paracordylodus''at fossilworks.org (retrieved 11 May 2016) Prioniodontida genera Ordovician conodonts Early Ordovician animals Fossil taxa described in 1971 {{conodont-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
