Induan Stage

Induan Stage

 

the bottom stage of the Lower Triassic. It was identified by L. D. Kiparisova and Iu. N. Popov (USSR) in 1956. In a typical cross section [the Ind River in the Solianoi (Salt) Range] it is composed of sandstone on the bottom and limestone and marl on top. The Induan stage is divided into two zones: Otoceras and Gyronites. Deposits of the Induan stage are extensively developed in Eurasia and also in North America, Africa, and Australia. The term is used primarily by Soviet geologists.

References in periodicals archive ?
crofti is probably not the direct forerunner of Neospathodus, which begins only in the Gandarian substage (= Dienerian) of the Brahmanian stage (= Induan stage, the original Induan comprises also the lower substage of the Olenekian) (Kozur 1992e).