The proposal consists of the following: Kutenai may possibly be distantly related to the Salishan family, but this link has not been demonstrated.

The Mosan family proposal is also hypothetical and is currently considered undemonstrated, rather appearing to be a Sprachbund.

Joseph Greenberg renamed Sapir's proposal Almosan and grouped it in an even more inclusive Almosan–Keresiouan phylum with the Caddoan, Iroquoian, Keresan, and Siouan families.

[1] Murray Gell-Mann, Ilia Peiros, and Georgiy Starostin group Chukotko-Kamchatkan and Nivkh with Almosan.

[3][4] In 1998, Vitaly V. Shevoroshkin rejected the Amerind affinity of the Almosan (Algonquian-Wakashan) languages, suggesting instead that they had a relationship with Dené–Caucasian.