[3] The Endangered Languages Project states that the differences between the Selkup dialects are "comparable to those between, for example, Ket, Yug, and Pumpokol".

[5] The Selkups, before the introduction of writing, used a rudimentary way of recording numbers; individual lines for units, crosses for tens, and stars for hundreds, as well as the usage of tamgas.

[10] A a, B в, Ç ç, D d, E e, Ə ə, G g, Ƣ ƣ, I i, J j, K k, L l, M m, N n, Ŋ ŋ, O o, Ɵ ɵ, P p, Q q, R r, S s, Ş ş, T t, U u, W w, Y y, Z z, Ʒ ʒ, Ь ь, Æ æ In the end, however, it was slightly modified.

[12] Writing in the Northern Selkup language was revived in 1986 with the publication of a primer in the Middle Taz dialect, which was followed by other literature.

[14] А а, Б б, В в, Г г, Д д, Е е, Ё ё, Ж ж, З з, И и, й, К к, Ӄ ӄ, Л л, М м, Н н, Ӈ ӈ, О о, Ө ө, П п, Р р, С с, Т т, У у, Ӱ ӱ, Ф ф, Х х, Ц ц, Ч ч, Ш ш, Щ щ, ъ, Ы ы, ь, Э э, Ю ю, Я я The letters Ӧ ӧ and Ә ә were introduced later.

Letters Б б, Г г, Д д, Ж ж, З з, Ф ф, Х х, Ц ц, Щ щ, Ъ ъ are only found in loanwords from Russian.