Homo kanamensis Leakey, 1935
Year: 1935
Taxonomic Rank: Species
Holotype: Kanam 1
Status: Potentially valid

Leakey (1935) established the name Homo kanamensis with Kanam 1 as the holotype. Kanam 1 preserves the anterior portion of a mandible. The labial side of the symphysis is obscured by a pathological growth, interpreted by some as a cancerous sarcoma (Montegu, 1957; Tobias, 1960). Leakey (1935) interpreted the anterior portion of the mandible as preserving a mental eminence and he attributed the age of the fossil to the later Middle Pleistocene or early Upper Pliestocene. For Leakey the morphology of the chin and the age suggested a taxon presaging Homo sapiens

Campbell (1965) recognized Homo kanamensis Leakey, 1935 as available and potentially valid, and Groves (1989) included the taxon as an available junior synonym of Homo sapiens heidelbergensis.

Authorship Reference
L. S. B. Leakey
The Stone Age Races of Kenya
The Stone Age Races of Kenya, Oxford University Press, Humphrey Milford, London, 1935
Additional References
L. S. B. Leakey
Fossil Human Remains from Kanam and Kanjera, Kenya Colony
Nature, 138(3493), 643, 1936
M. F. A. Montagu
The Chin of the Kanam Mandible
American Anthropologist, 59(2), 335-338, 1957

P. Tobias
The Kanam Jaw
Nature, 185, 496-497, 1960
B. Campbell
The nomenclature of the hominidae, including a definitive list of hominid taxa
Occaisional Papers of the Royal Anthropological Institute, 22, 1-33, 1965

C. Groves
A theory of human and primate evolution
Clarendon Press, 1989, ISBN 9780198576297, 0198576293