The discovery and description of this species is credited to both Mary and Louis Leakey, who found fossils in Tanzania, East Africa, between 1962 and 1964.. 
Òótọ́ nipé ò lòdì sí ìkópa Amẹ́ríkà ní Vietnam.Ìtọ́kasí Ọjọ́ìbí ní 1904àwọn Ojoaláìsí ní 1980àwọn Àṣẹsáyẹ́nsì olóṣèlú ará Amẹ́ríkà.. 