The Amb Formation has been assigned to the artinskian age on the basis of the relative age of parafusulina kaetensis (Kummel and Teichert, 1970).
In case of the Zaluch Nala and the Ghundi Nala sections, upon comparison with the global sea level curve (Haq et al, 1987), in long term global sea level has kept still throughout the artinskian time period and a composite transgressive systems tract of second order can be correlated in both curves.
These authors believe this sequence to be middle Artinskian
Thus, the unit accumulated near the limit between the Lower Artinskian
and the Upper Sakmarian, Cisuralian, Permian.
It is improbable, however, based on the combined evidence and in particular the occurrence of Notalacerta, that these strata are as young as Artinskian
Selective disappearance and replacement of different faunal groups, especially great changes in rugose corals, have been recorded from the Late Sakmarian to Late Artinskian.
For this study several Artinskian sections were investigated in the northern part of the Central Urals, including the Most and Karpikha sections (Fig.
On the basis of previous literature the assigned stages are; Artinskian
to Warchha and Kungurian to Wordian stage to Sardhai Formation.
This means an age included in a large interval: Middle Asselian to Middle Artinskian
According to different paleontological studies references, the age of these formations ranges from the upper Sakmarian or upper Artinskian
to the lower Lopingian (Korner, 1999; Korner et al.
Given the economic interest, this area was the first to be studied and was considered it as representative of the continental Lower Permian and contemporaneous of the Artinskian
by Munier-Chalmas and Lapparent (1893).
and Ufimian palynomorph assemblages from the central Southern Alps, Italy, and their stratigraphic regional implications.