A new, fossil chameleon is described, † Chamaeleo intermedius, found on the surface at Fort Ternan, Kenya. Most probably it eroded from a layer of fossilized lahar, close to 14 million years old. † Chamaeleo intermedius possesses characters which still occur in recent chameleons, in fact it combines characters of two groups of recent species which are considered to be widely apart from each other (the oviparous group around Ch. chamaelon – particularly Ch. namaquensis – and the ovoviviparous group around Ch. bitaeniatus).