What is "artinskian"

thumb|Jimbacrinus bostocki Arkisitan of Australia. (Found near Jimba Jimba Station ) In the geologic timescale, the Artinskian is an age or stage of the Permian. It is a subdivision of the Cisuralian epoch or series. The Artinskian lasted between and million years ago (Ma). It was preceded by the Sakmarian and followed by the Kungurian.