In the geologic timescale, the Sakmarian is an age or stage of the Permian period.
In Russian stratigraphy, it originally formed a substage of the Artinskian Stage.
The base of the Sakmarian Stage is defined by the first appearance of conodont species Streptognathodus postfusus in the fossil record.
A global reference profile for the stage's base (a GSSP), located in the southern Ural Mountains, Russia, was ratified in 2018.
The top of the Sakmarian (the base of the Artinskian) is defined as the level in the stratigraphic record where fossils of conodont species Sweetognathus whitei and Mesogondolella bisselli first appear.