Australopithecus anamensis -- KNM-KP 29283

Australopithecus anamensis -- KNM-KP 29283

KNM-KP 29283 is a 4.17 - 4.12 million-year-old  Australopithecus anamensis maxilla that was found in East Africa.

A paleoanthropological research team led by Meave Leakey

KNM-KP 29283

Kenya

Kanapoi

1997

4.17 - 4.12 million years ago

⁴⁰Ar/³⁹Ar dating of the volcanic ash layer the specimen was found in

This adult maxilla, as can be seen in the picture, is not as complete as the mandible appointed as the Au. anamensis type specimen. Based on the material present, it is apparent that this maxilla has a very shallow palate with roots that indicate the possible existance of large molars. The single canine that is present is larger than those seen in Au. afarensis, but is smaller than those seen in earlier hominids. Additionally, when examined from a lateral view, one can see the presence of incisor jutting.

Hefner, Joseph. "Australopithecus anamensis." Michigan State University, 23 Feb. 2012, East Lansing.

"Australopithecus anamensis: KNM-KP 29283." eFossils, www.efossils.org/page/boneviewer/Australopithecus%20anamensis/KNM-KP%2029283. Accessed 12 Apr. 2017.

Images from:
Johanson, Donald, and Blake Edgar. From Lucy to Language. New York, Nevraumont Publishing Company, 2006, pp. 130