Central and South New Guinea languages

The Central and South New Guinea languages are a proposed family of Trans-New Guinea languages, originally part of Voorhoeve and McElhanon's Trans-New Guinea proposal but reduced in scope by the linguist Malcolm Ross to four branches: the Asmat-Kamoro family, the Greater Awyu family, the Mombum family, and the Ok-Oksapmin family. Later classifications disagree over the branch's validity: Ethnologue retains only a combined Ok-Awyu branch and treats Asmat and Mombum as independent branches of Trans-New Guinea, while other researchers argue the similarities between Greater Awyu and Greater Ok reflect language contact rather than common descent.