The Centro Nacional de Investigación sobre la Evolución Humana (CENIEH) has led a new international study published in the journal Quaternary Geochronology, about the direct dating of a fossil tooth of Homo antecessor from the unit TD6 of the archaeological site of Gran Dolina in the Sierra de Atapuerca (Burgos, Spain). In the work, a time range of between 772,000 and 949,000 years was found for this species of the Lower Pleistocene, so confirming earlier indirect datings.