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Olenekian Stage
(redirected from Olenekian)

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Olenekian Stage 

second lowest stage of the Triassic system, roughly corresponding to the upper half of the Scythian (Werfenian) stage or to the Campilian (Tirolian) stage of Western Europe. The Olenekian stage was identified by L. D. Kiparisova and Iu. N. Popov in 1956. A type section from the lower course of the Olenek River is composed of argillites and aleurolites with concretions of limestones containing ammonites. Olenekian deposits are widespread in Eurasia, North America, and New Zealand. The term is used mainly by Soviet geologists.
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TAXONOMY Order Grylloblattida Walker, 1914 Suborder Grylloblattina Walker, 1914 Family Chaulioditidae Handlirsch, 1906 Type genus: Chauliodites Heer, 1864 with 11 species from the Severodvinian--Olenekian of Russia, Induan of Mongolia, Olenekian of Germany, Anisian of France and Middle Triassic of China (Aristov, 2003, 2004b, 2008).
New and poorly known grylloblattids (Insecta: Grylloblattida) from ... by Aristov, D.S.; Prevec, R.; Mostovski, M.B. / African Invertebrates
Transitional forms from Neospathodus to Paragondolella are known in the basal Olenekian and from Neospathodus to Neogondolella in the latest Olenekian and basal Anisian (Kozur 1990a; 1990b).
A new conodont from the uppermost Lamar Limestone of the Delaware ... by Kozur, Heinz; Lucas, Spencer G. / The Texas Journal of Science
 
 
 
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