Berger||-| | KNM ER 1813| 1.9 Ma| Homo habilis| 1973| Kenya| Kamoya Kimeu||-| | KNM ER 1470| 1.9 Ma| Homo rudolfensis| 1972| Kenya| Bernard Ngeneo||-| | OH 24(Twiggy)| 1.8 Ma| Homo habilis| 1968| Tanzania| Peter Nzube||-| | OH 8| 1.8 Ma| Homo habilis| 1960| Tanzania|||-| | OH 5(Zinj ornutcracker man)| 1.8 Ma| Paranthropus boisei| 1959| Tanzania| Mary Leakey||-| | D2700 (Dmanisi Skull 3)| 1.8 Ma| Homo erectus| 2001| Georgia| David Lordkipanidze and Abesalom Vekua||-| | D3444 (Dmanisi Skull 4)| 1.8 Ma| Homo erectus| 2003| Georgia| David Lordkipanidze||-| | D4500 (Dmanisi Skull 5)| 1.8 Ma| Homo erectus| 2005 ( published in 2013)| Georgia|David Lordkipanidze||-||KNM-ER 62000|1.78 -1.9 Mya|Homo rudolfensis|2012|Koobi Fora, Kenya|Meave Leakey's team||-||KNM-ER 62003 (mandibular fragment)|1.78 -1.9 Mya|Homo rudolfensis|2012|Koobi Fora, Kenya|Meave Leakey's team||-||KNM-ER 60000 (mandible)|1.78 -1.9 Mya|Homo rudolfensis|2012|Koobi Fora, Kenya|Meave Leakey's team||-| | OH 7| 1.75 Ma| Homo habilis| 1960| Tanzania| Jonathan Leakey||-| | KNM ER 3733| 1.75 Ma| Homo ergaster (aka Homo erectus)| 1975| Kenya| Bernard Ngeneo||-|| KNM ER 1805| 1.74 Ma| Homo habilis| 1973/4| Kenya| Paul Abell||-| | Yuanmou Man| 1.7 Ma / 0.5-0.6 Ma (disputed)| Homo erectus| 1965| China| Fang Qian||-| | KNM ER 406| 1.7 Ma| Paranthropus boisei| 1969| Kenya| Richard Leakey||-|| KNM ER 732| 1.7 Ma| Paranthropus boisei| 1970| Kenya| Richard Leakey||-| | KNM ER 23000| 1.7 Ma| Paranthropus boisei| 1990| Koobi Fora, Kenya| Benson Kyongo||-|| KNM WT 17400| 1.7 Ma| Paranthropus boisei|| Kenya|||-| | KNM WT 15000(Turkana Boy)| 1.6 Ma| Homo ergaster (aka Homo erectus)| 1984| Kenya| Kamoya Kimeu| Kenya National Museum|-| | StW 53| 1.5 - 2 Ma| Homo gautengensis| 1976| South Africa| A.. 
4-trimethylaminobutyraldehyde dehydrogenase jẹ́ enzyme nínú ara àwọn ènìyàn tí ALDH9A1 gene máa ń kóòdù fún.Àwọn ìtọ́kasíìwé àkàsíwájú àyọkà kúkúrú.. 