Foley (2003)[citation needed] considers their Trans–New Guinea language group status to be established.
Larson (1977)[2] divided the family into three branches based on lexicostatistics, and Nggem was later added as a fourth.
[3] This is identical to the reconstruction of Bromley (1966-1967)[4] apart from adding the rare consonants *pw, *mbw, and the possible additional vowel *ɐ.
Ross (1995)[citation needed] reconstructs the independent pronouns and possessive/object prefixes of Central Dani as: The following basic vocabulary words are from Bromley (1967)[4] and Voorhoeve (1975),[5] as cited in the Trans-New Guinea database.
[6] The words cited constitute translation equivalents, whether they are cognate (e.g. nakapak, ogobak, nokopak for “nose”) or not (e.g. natði, nemake, nabilikagen for “tongue”).