Cite any non-quoted material obtained here as follows:
Calvert, A., K. Flammer, A. Hayes, C. Ibarra, T. Lin, D. Lowen, M. Pevey,M. Thompson, S. Vivelo, B. Wheelis, & H. Gilbert. 2017. Species naming and current status of Homo ergaster. Accessed from the Human Fossil Record Database at fossilized.org on April 29, 2017 .
Synonyms: Homo erectus
Homo ergaster would be assigned to Homo erectus using the Fossilized.org alpha taxonomy
Original diagnosis:?Incisors and canines similar in size to Homo africanus (Dart, 1925) and Homo habilis L.S.B. Leakey, Tobias and Napier, 1964, but premolars and, especially, molars much smaller; premolars less narrow than in Homo habilis and with roots reduced in number, often only a single root is present; lower P4 seems to tend to have relatively smaller crown surface than lower P3; cranial capacity substantially larger than in Homo africanus, apparently as in Homo habilis or somewhat more; mandible rather thick and massive."