It is sometimes grouped with Northern Altai and the Kondoma dialect of Shor, due to similarities.
[2] Lower Chulym is classified in the Siberian group of Turkic languages.
A third Turkic variety, Küärik, was spoken in the Chulym basin, north of Mariinsk.
This dialect, which had disappeared by the time of Dulzon in 1940, was considered by Radloff to be identical to Lower Chulym.
[3] Key: K - Küärik, LC - Lower Chulym The words for the numerals 80 and 90 are сексон and тоқсон, in contrast to сегизон/сегизен and тоғузон/тоғузан for the rest of the Northern Altai group, being an isogloss with Khalaj, Middle Chulym, Kipchak (except for Southern Altai), Karluk and Oghuz.