Kanoshia | |
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Kanoshia kanoshensis pygidium from the Utah, Ordovician | |
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Genus: | Kanoshia Harrington, 1957 |
Kanoshia is a genus of trilobites in the order Phacopida (family Pliomeridae), that existed during the middle Ordovician in what is now Utah, USA. It was described by Harrington in 1957, and the type species is Kanoshia kanoshensis, which was originally described under the genus Pseudomera by Hintze in 1953. It also contains the species K. depressus and K. reticulata. The generic name is derived from the type species' epithet, which in turn is derived from the name of the type locality, the Kanosh Formation. [1]
Trilobites are a group of extinct marine arachnomorph arthropods that form the class Trilobita. Trilobites form one of the earliest-known groups of arthropods. The first appearance of trilobites in the fossil record defines the base of the Atdabanian stage of the Early Cambrian period, and they flourished throughout the lower Paleozoic era before beginning a drawn-out decline to extinction when, during the Devonian, all trilobite orders except the Proetids died out. Trilobites disappeared in the mass extinction at the end of the Permian about 252 million years ago. The trilobites were among the most successful of all early animals, existing in oceans for over 300 million years.
Phacopida ("lens-face") is an order of trilobite that lived from the Late Cambrian to the Late Devonian. It is made up of a morphologically diverse group of related suborders.
Pliomeridae is a family of phacopide trilobites, containing the following genera:
Boeckops is a genus of trilobites in the order Phacopida, which existed in what is now the Czech Republic. It was described by Chlupac in 1972, and the type species is Boeckops boecki, which was originally described as Phacops boecki by Hawle and Corda in 1847. Boeckops is also been discriped from the lower Devonian of Morocco and Algeria. The Genus Boeckops is interpreted as intermediate from between the traditional genus concept of Phacops and Reedops. The Genus Boeckops is regarded as problematic or difficult by McKellar et Chatterton 2009.
Burmeisteria is a genus of trilobites in the order Phacopida that existed during the lower Devonian in what is now South Africa. It was described by Salter in 1865, and the type species is Burmeisteria herschelii, which was originally described under the genus Homalonotus by Murchison in 1839. It also contains the species B. accraensis, B. acuminata, and B. noticus. The type locality was the Bokkeveld Group.
Calymenella is a genus of trilobites in the order Phacopida, which existed in what is now France during the upper Ordovician. It was described by Bergeron in 1890, and the type species is Calymenella boisseli. The species was described from the Glauzy Formation in the Montagne Noire mountain range.
Courtessolium is a genus of trilobites in the order Phacopida that existed during the lower Ordovician in what is now France. It was described by Pribyl and Vanek in 1985, and the type species is Courtessolium prepater, which was originally described under the genus Pateraspis by Courtessole and Pillet in 1975, and was later renamed under the genus Pseudosphaerexochus. The new generic name, Courtessolium, honours one of the original authors of the species.
Cromus is a genus of phacopid trilobites in the family Encrinuridae, that existed during the upper Silurian in what is now the Czech Republic. The genus was described by Barrande in 1852, and the type species is C. intercostatus. It also contains the species C. canorus.
Curriella is a genus of trilobites in the order Phacopida, that existed during the lower Silurian in what is now Scotland. It was described by Lamont in 1978, and the type species is Curriella newlandensis; the species epithet was derived from the type location, the Newlands Formation. It also contains the species C. clancyi.
Daytonia is a trilobite in the order Phacopida, that existed during the lower Silurian in what is now the United States. It was described by D. J. Holloway in 1981, and the type species is Daytonia werthneri, which was originally described under the genus Dalmanites by August Foerste in 1885. It also contains the species, Daytonia mekon. The type locality for the genus was the Brassfield Formation, in Ohio.
Demeterops is a genus of trilobites in the order Phacopida, that existed during the lower Ordovician in what is now the United States. It was described by Pribyl and Vanek in 1985, and the type species is Demeterops loella, which was originally described as a dubious species in the genus Pilekia by Demeter, in 1973. The new generic name honours the species' original author. The type locality was the Fillmore Formation in Utah.
Digonus is a genus of trilobites in the order Phacopida, that existed during the lower Devonian in what is now Germany. It was described by Gurich in 1909, and the type species is Digonus gigas, which was originally described under the genus Homalonotus by Roemer in 1843. It also contains the species Digonus accraensis and Digonus noticus, Digonus vialai, and Digonus zemmourensis. The type locality was in the Harz mountains.
Duftonia is a trilobite in the order Phacopida, that existed during the upper Ordovician in what is now England. It was described by Dean in 1959, and the type species is Duftonia lacunosa. The type locality was the Dufton Shale Formation, from which the generic name was derived.
Encrinuroides is a genus of trilobites in the order Phacopida, that existed during the upper Ordovician in what is now Wales. It was described by Reed in 1931, and the type species is Encrinuroides sexcostata, which was originally described under the genus Cybele by Salter in 1848. It also contains the species, Encrinuroides enshiensis, Encrinuroides insularis, and Encrinuroides rarus. The type locality was in the Sholeshook Limestone Formation.
Eocheiurus is a genus of trilobites in the order Phacopida, that existed during the upper Cambrian in what is now Russia. It was described by Rozova in 1960, and the type species is Eocheirurus salairicus. The species epithet is derived from the name of the town, Salair, in which the type locality, the Tolstochikhin Formation, is located.
Estoniops is a genus of trilobites in the order Phacopida, that existed during the upper Ordovician in what is now Estonia. It was described by Mannil in 1958, and the type species is Estoniops exilis, which was originally described under the genus Acaste by Eichwald in 1858. Its generic name is derived from the country in which it was first discovered.
Gourdonia is a trilobite in the order Phacopida, that existed during the middle Devonian in what is now France. It was described by Pillet in 1954, and the type species is Gourdonia gourdoni, which was originally described under the genus Dalmanites by Barrois in 1883. The generic name is derived from the species epithet. The type locality was the Cathervielle Shale in the Pyrenees mountains.
Hintzeia is a genus of trilobites in the order Phacopida, that existed during the lower Ordovician in what is now the United States. It was described by Harrington in 1957, and the type species is Hintzeia aemula, which was originally described under the genus Protopliomerops by Hintze in 1953. Harrington also moved two other Protopliomerops species, P. celsaora and P. firmimarginis, under Hintzeia. The generic name is derived from that of the type species' author. The type locality was the Fillmore Formation in Utah.
Kayserops is a trilobite in the order Phacopida, that existed during the lower Devonian in what is now Germany. It was described by Delo in 1935, and the type species is Kayserops kochi, which was originally described under the genus Cryphaeus by Kayser in 1883. The generic name is derived from the name of the species' author. The type locality was the Rhenish Massif.
Kozlowskiaspis is a genus of trilobites in the order Phacopida, that existed during the lower Devonian in what is now Bolivia. It was described by Branisa and Vanek in 1973, and the type species is Kozlowskiapsis superna. It also contains the species K. australis and K. borealis. The type locality was the Icla Formation.
Micragnostus is a genus of trilobite in the order Agnostida, which existed in what is now north Wales. It was described by Howell in 1935, and the type species is Micragnostus calvus, which was originally described as a species of Agnostus by Lake in 1906.
Oncagnostus is a genus of trilobite in the order Agnostida, which existed in what is now Shandong, China. It was described by Whitehouse in 1936, and the type species is Oncagnostus hoi, which was originally described as a species of Agnostus by Sun in 1924.
Phalacroma is a genus of trilobite in the order Agnostida, which existed in what is now the Czech Republic. It was described by Hawle and Corda in 1867, and the type species is Phalacroma bibullatus, which was originally described as a species of Battus by Barrande in 1846.
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