Hierarchy classification:

1. top of the aat hierarchies
2. Associated Concepts Facet
3. Associated Concepts (hierarchy name)
4. language-related concepts
5. [languages and writing systems]
6. [languages and writing systems by specific type]

Anotations

Scope note:

Language family of central Eurasia and Siberia, now believed by some to be a sprachbund rather than a family; a sprachbund would be a group of languages that have common features resulting from geographical proximity and language contact, but not necessarily otherwise related.