Rhynchonella
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''Rhynchonella'' is an extinct
genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial nom ...
of
brachiopod Brachiopods (), phylum Brachiopoda, are a phylum of trochozoan animals that have hard "valves" (shells) on the upper and lower surfaces, unlike the left and right arrangement in bivalve molluscs. Brachiopod valves are hinged at the rear end, w ...
found in
Ordovician The Ordovician ( ) is a geologic period and system, the second of six periods of the Paleozoic Era. The Ordovician spans 41.6 million years from the end of the Cambrian Period million years ago (Mya) to the start of the Silurian Period Mya. T ...
to
Eocene The Eocene ( ) Epoch is a geological epoch that lasted from about 56 to 33.9 million years ago (mya). It is the second epoch of the Paleogene Period in the modern Cenozoic Era. The name ''Eocene'' comes from the Ancient Greek (''ēṓs'', " ...
strata worldwide. It was a stationary epifaunal suspension feeder.


Description

These 1.75 to 3.75 cm long articulate brachiopods are characterized by a triangular shell with a spherical profile, powerful ribs, a curved hinge line and a small umbo. The anterior margin shows a tongue like projection.Short notes on Shell, Spirifer, Rhynchonella and Terebratula
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Species

*'' Rhynchonella acuminata'' † Martin 1809 *'' Rhynchonella adrianensis'' † Gemmellaro 1899 *'' Rhynchonella boloniensis'' † (d'Orbigny, 1850) *'' Rhynchonella carapezzae'' † Gemmellaro 1899 *'' Rhynchonella carinthiaca'' † Bittner 1890 *''
Rhynchonella confinensis ''Rhynchonella'' is an extinct genus of brachiopod found in Ordovician to Eocene strata worldwide. It was a stationary epifaunal suspension feeder. Description These 1.75 to 3.75 cm long articulate brachiopods are characterized by a triang ...
'' † Schellwien 1892 *'' Rhynchonella djeffarae'' † Dubar 1967 *'' Rhynchonella edwardsi'' † Chapuis & Dewalque 1853 *'' Rhynchonella eskiordensis'' † Moisseiev 1932 *''
Rhynchonella fraasi ''Rhynchonella'' is an extinct genus of brachiopod found in Ordovician to Eocene strata worldwide. It was a stationary epifaunal suspension feeder. Description These 1.75 to 3.75 cm long articulate brachiopods are characterized by a triang ...
'' † Oppel 1861 *''
Rhynchonella granulum ''Rhynchonella'' is an extinct genus of brachiopod found in Ordovician to Eocene strata worldwide. It was a stationary epifaunal suspension feeder. Description These 1.75 to 3.75 cm long articulate brachiopods are characterized by a triang ...
'' † Eichwald 1860 *''
Rhynchonella inflata ''Rhynchonella'' is an extinct genus of brachiopod found in Ordovician to Eocene strata worldwide. It was a stationary epifaunal suspension feeder Filter feeders are a sub-group of suspension feeding animals that feed by straining suspended ...
'' † Jaboli 1959 *''
Rhynchonella jukesi ''Rhynchonella'' is an extinct genus of brachiopod found in Ordovician to Eocene strata worldwide. It was a stationary epifaunal suspension feeder. Description These 1.75 to 3.75 cm long articulate brachiopods are characterized by a triang ...
'' † McCoy 1847 *''
Rhynchonella kochigataniensis ''Rhynchonella'' is an extinct genus of brachiopod found in Ordovician to Eocene strata worldwide. It was a stationary epifaunal suspension feeder. Description These 1.75 to 3.75 cm long articulate brachiopods are characterized by a triang ...
'' † Tokuyama 1957 *''
Rhynchonella krotovi ''Rhynchonella'' is an extinct genus of brachiopod found in Ordovician to Eocene strata worldwide. It was a stationary epifaunal suspension feeder. Description These 1.75 to 3.75 cm long articulate brachiopods are characterized by a triang ...
'' † Tschemyschew 1902 *''
Rhynchonella lacuna ''Rhynchonella'' is an extinct genus of brachiopod found in Ordovician to Eocene strata worldwide. It was a stationary epifaunal suspension feeder. Description These 1.75 to 3.75 cm long articulate brachiopods are characterized by a triang ...
'' † Quenstedt 1871 *''
Rhynchonella langleti ''Rhynchonella'' is an extinct genus of brachiopod found in Ordovician to Eocene strata worldwide. It was a stationary epifaunal suspension feeder. Description These 1.75 to 3.75 cm long articulate brachiopods are characterized by a triang ...
'' † Chapuis & Dewalque 1853 *''
Rhynchonella limbata ''Rhynchonella'' is an extinct genus of brachiopod found in Ordovician to Eocene strata worldwide. It was a stationary epifaunal suspension feeder. Description These 1.75 to 3.75 cm long articulate brachiopods are characterized by a triang ...
'' † Schlotheim 1813 *''
Rhynchonella lingulata ''Rhynchonella'' is an extinct genus of brachiopod found in Ordovician to Eocene strata worldwide. It was a stationary epifaunal suspension feeder. Description These 1.75 to 3.75 cm long articulate brachiopods are characterized by a triang ...
'' † Gabb 1864 *''
Rhynchonella loxia ''Rhynchonella'' is an extinct genus of brachiopod found in Ordovician to Eocene strata worldwide. It was a stationary epifaunal suspension feeder Filter feeders are a sub-group of suspension feeding animals that feed by straining suspended m ...
'' † Fischer von Waldheim 1809 *'' Rhynchonella maudensis'' † Whiteaves 1884 *'' Rhynchonella minuta'' † Buvignier 1843 *'' Rhynchonella miquihuanensis'' † Imlay 1937 *'' Rhynchonella misella'' † Bittner 1890 *'' Rhynchonella negrii'' † Gemmellaro 1899 *'' Rhynchonella paolii'' † Canavari 1880 *'' Rhynchonella paucicosta'' † Kitchin 1910 *'' Rhynchonella pauciplicata'' † Kitchin 1900 *'' Rhynchonella prona'' † Oppel 1861 *'' Rhynchonella pseudoazaisi'' † Dubar 1967 *'' Rhynchonella pugnus'' † Martin *'' Rhynchonella pupula'' † Bittner 1890 *'' Rhynchonella salinasi'' † Gemmellaro 1899 *'' Rhynchonella sosiensis'' † Gemmellaro 1899 *'' Rhynchonella subrimosa'' † Schafhauti 1851 *'' Rhynchonella tazerdunensis'' † Dubar 1967 *'' Rhynchonella texanus'' † Shumard 1859 *'' Rhynchonella wichmanni'' † Rothpletz 1892 *'' Rhynchonella withei'' † Gemmellaro 1899


References

*Frank H.T. Rodes, Herbert S. Zim en Paul R. Shaffer (1993) - Natuurgids Fossielen (het ontstaan, prepareren en rangschikken van fossielen), Zuidnederlandse Uitgeverij N.V., Aartselaar. ISBN D-1993-0001-361 Prehistoric brachiopod genera Llandovery first appearances Eocene genus extinctions Rhynchonellida Paleozoic life of Ontario {{Brachiopod-stub