Excerpt from change request document:

This is a name that was used to refer to a group of several different uncontacted groups. It is no longer used to refer to this group because it is now known that there are four separate, now identified groups that fell under this label (see http://lucy.ukc.ac.uk/Sonja/RF/Ukpr/Report34.htm).

These groups are: Harakmbet--two languages, Amarakaeri [amr] and Huachipaeri [hug]; Kulina [cul]; Amahuaca [amc]; and Yawanawa [ywn]