29 relations: Agnatha, Arenig, Cameroceras, Changshan County, Chazy Formation, China, Cochabamba Department, County of Grant, Victoria, Dapingian, Endoceras, Endocerida, First appearance datum, Fossil, Global Boundary Stratotype Section and Point, Graptolithina, Hirnantian, Homerian, Meniscoceras, Najaceras, Nanno (genus), Ordovician, Proterovaginoceras, Sacabamba, Sacabambaspis, Sandbian, Thomas Sergeant Hall, Tremadocian, Victoria (Australia), Zhejiang.
Agnatha
Agnatha (Greek, "no jaws") is a superclass of jawless fish in the phylum Chordata, subphylum Vertebrata, consisting of both present (cyclostomes) and extinct (conodonts and ostracoderms) species.
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Arenig
In geology, the Arenigian (or 'Arenig') refers both to a time interval during the Lower Ordovician period and also to the suite of rocks which were deposited during this interval.
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Cameroceras
Cameroceras ("chambered horn") is a genus of extinct, giant orthoconic cephalopod that lived mainly during the Ordovician period.
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Changshan County
() is a county under the jurisdiction of Quzhou city in Zhejiang Province of the People's Republic of China.
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Chazy Formation
The Chazy Reef Formation is a mid-Ordovician limestone deposit in northeastern North America.
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China
China, officially the People's Republic of China (PRC), is a unitary one-party sovereign state in East Asia and the world's most populous country, with a population of around /1e9 round 3 billion.
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Cochabamba Department
Cochabamba (Quchapampa Jach'a Suyu, Departamento de Cochabamba, Quchapampa Suyu), from Quechua qucha or qhucha, meaning "lake", pampa meaning "plain", is one of the nine departments of Bolivia.
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County of Grant, Victoria
The County of Grant is one of the 37 counties of Victoria which are part of the cadastral divisions of Australia, used for land titles.
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Dapingian
The Dapingian is the third stage of the Ordovician and the first stage of the Middle Ordovician.
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Endoceras
Endoceras (Ancient Greek for "inner horn") is an extinct genus of large, straight shelled cephalopods from the Middle and Upper Ordovician that gives its name to the Nautiliod order Endocerida.
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Endocerida
Endocerida is an extinct nautiloid order, a group of cephalopods from the Lower Paleozoic with cone-like deposits in its siphuncle.
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First appearance datum
First appearance datum is a term used by geologists and paleontologists to designate the first (oldest) appearance of a species in the geologic record.
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Fossil
A fossil (from Classical Latin fossilis; literally, "obtained by digging") is any preserved remains, impression, or trace of any once-living thing from a past geological age.
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Global Boundary Stratotype Section and Point
A Global Boundary Stratotype Section and Point, abbreviated GSSP, is an internationally agreed upon reference point on a stratigraphic section which defines the lower boundary of a stage on the geologic time scale.
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Graptolithina
Graptolithina is a subclass of the class Pterobranchia, the members of which are known as graptolites.
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Hirnantian
The Hirnantian is the seventh and final internationally recognized stage of the Ordovician Period of the Paleozoic Era.
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Homerian
In the geologic timescale, the Homerian is the age of the Wenlock epoch of the Silurian period of the Paleozoic era of the Phanerozoic eon that is comprehended between 426.2 ± 2.4 Ma and 422.9 ± 2.5 Ma (million years ago), approximately.
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Meniscoceras
Meniscoceras is a straight and slender Chazyan endocerid described by Rousseau Flower in 1941 The genus was originally included in the Proterocameroceratidae (Flower, 1955) but later (Flower, 1976) placed with its predecessor, Najaceras, in the Najaceratidae.
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Najaceras
Najaceras is a genus of straight, slender endocerid known only from the Whiterockian age Oil Creek Limestone of Oklahoma, introduced and named by Rousseau Flower in 1971 and further described by him in 1976.
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Nanno (genus)
Nanno is an Endocerid, named by Clarke in 1894 for the apical end of an endocerid from the Trenton Limestone of New York state that has the basic description of the nanno type (where the siphuncle swells to fill the entire apex of the shell, leaving septa and camerae to begin a few centimeters forward).
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Ordovician
The Ordovician is a geologic period and system, the second of six periods of the Paleozoic Era.
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Proterovaginoceras
Proterovaginoceras (Ancient Greek for "earlier shield horn") is a medium to large sized endocerid (endocone-bearing orthoconic nautiliod) from the Early and Middle Ordovician included in the family Endoceratidae.
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Sacabamba
Sacabamba (Saqapampa) is a town in the Cochabamba Department in central Bolivia.
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Sacabambaspis
Sacabambaspis is an extinct genus of jawless fish that lived in the Ordovician period.
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Sandbian
The Sandbian is the first stage of the Upper Ordovician.
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Thomas Sergeant Hall
Thomas Sergeant Hall (23 December 1858 – 21 December 1915) was an Australian geologist and biologist, recipient of The Murchison Fund in 1901.
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Tremadocian
The Tremadocian is the lowest stage of Ordovician.
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Victoria (Australia)
Victoria (abbreviated as Vic) is a state in south-eastern Australia.
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Zhejiang
, formerly romanized as Chekiang, is an eastern coastal province of China.
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References
[1] https://en.wikipedia.org/wiki/Darriwilian