The аrchаeоlоgicаl recоrd is said to be incomplete and biased because
Dr. Eduаrdо Mаtоs Mоctezumа studies the material remains of the ancient Mayan and Aztec civilizations to reconstruct culture history. His major projects include excavation and investigation of pre-Columbian, colonial and modern Tula sites; Teotihuacan, where he excavated the Pyramid of the Sun. In which of the four-fields of anthropology does Dr. Moctezuma's work?