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Which South Samoyedic languages became extinct?

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distribution of the Uralic languages — Uralic languages Distribution of the Uralic languages.

Within the South Samoyedic subgroup of the Uralic languages, Selkup is the only remaining living language.12

The other languages historically classified within the South Samoyedic group are now extinct. These include:

Kamas (also known as Sayan)32
Motor2
Koibal2
Karagas2
Soyot2
Taigi2

While Kamas survived into the 20th century, the other listed languages are also documented as extinct dialects within this branch of the Samoyedic languages.32