Olenekian Stage

(redirected from Olenekian)
Also found in: Wikipedia.

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.

References in periodicals archive ?
Welles (1993) referred the trematosauroid cranial remains to the slender-snouted lonchorhynchine Cosgriffius, which was first reported from the Wupatki Member of the Moenkopi Formation (of Olenekian age) in Arizona.
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).
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).