1. Department of Anthropology, University of Colorado Denver, Denver, CO, USA
2. Centre for the Exploration of the Deep Human Journey, University of the Witwatersrand, Johannesburg, South Africa
3. Instituto Superior Politécnico de Tecnologias e Ciências (ISPTEC), Luanda, Angola
4. Department of Cultural Heritage and GeoParks, Ngorongoro Conservation Area Authority, Ngorongoro, Tanzania
5. School of Earth Sciences, Arat Kilo Campus, Addis Ababa University, Addis Ababa, Ethiopia