The Guaráyu or Guaráyo languages (also known as Tupi–Guarani II) the are a subgroup of the Tupi–Guarani language family.Dietrich, Wolf. O tronco tupi e as suas famílias de línguas. Classificação e esboço tipológico. In: NOLL, Volker. ''O Português e o Tupi no Brasil''. São Paulo: Editora Contexto, 2010.
Pauserna
The Pauserna are an indigenous people in Bolivia and Brazil who live along the upper Río Guaporé. Most of them live in the southeastern part of the department of Beni, in Bolivia. The people derive their name from the fact that the pao cerne t ...
(Warázu)
*
Sirionó
The Sirionó are an indigenous people of Bolivia. They primarily live in the forested northern and eastern parts of Beni and northwestern Santa Cruz departments of Bolivia.Rodrigues, A. D. (2013) Relações internas na família linguística Tupí-Guaraní ''Revista Brasileira De Linguística Antropológica'', 3(2). https://doi.org/10.26512/rbla.v3i2.16264
*Guarayo (Guarayú)
*Sirionó
*Horá (Jorá)
Rodrigues & Cabral (2012)
Languages listed by Rodrigues and Cabral (2012):Rodrigues, Aryon Dall'Igna, and Ana Suelly Arruda Câmara Cabral (2012). "Tupían". In Campbell, Lyle, and Verónica Grondona (eds) ''The indigenous languages of South America: a comprehensive guide'' Berlin: De Gruyter Mouton.
*Guaráyo (Guarayo, Guarayú)
*Sirionó
*Yúki
Dietrich (2010)
Languages listed by Dietrich (2010):
* Guarayo
* Guarasug’wä/Pauserna
* Sirionó
* Yuki / Mbyá-Jê
* Aché/Guayaki