The forty or so Plateau are a tentative group of Benue–Congo languages spoken by 3.5 million people on the Jos Plateau and in adjacent areas in Central Nigeria. The original formulation, now called Platoid or Central Nigerian, included the Jukunoid, Kainji languages, and later the Dakoid languages. (See Benue–Congo.) Defining features of the Plateau family have only been published in manuscript form (Blench 2008).