Premise: KNM ER 1805 is the catalog number given to several pieces of a fossilized skull of the species "Homo habilis". It was discovered in Koobi Fora, Kenya in 1974. The designation indicates specimen 1805, collected from the east shore of Lake Rudolf (now Lake Turkana) for the Kenya National Museums.
Hypothesis: KNM ER 1800+5 is the catalog number given to several pieces of a fossilized skull of the species "Homo habilis