The architecture is modernist, with two rectangular volumes. The main facade of the first features flagstones supported by six columns. The temporary exhibition gallery on INAH’s recent work at the State of Mexico INAH Center comes first and has space for 20 visitors. The permanent exhibition gallery conserves the actual site on which Dr. Helmut de Terra and the engineer Alberto R.V. Arellano discovered the remains of Tepexpan Man in 1947. Today, the oldest remains are of Tlapacoya Man, 12,000 years old, discovered in 1968.
Research into the human and animal remains of Tepexpan was led by the physical anthropologist Javier Romero Molina, while stratigraphic anthropological data was handled by Alberto R.V. Arellano, and Helmut de Terra took charge of the geology. They concluded that the human remains at Tepexpan belonged to homo sapiens specimens contemporary with the elephant fossils and stone artifacts already found on the site, dating to the Pleistocene, which began 2.59 million years ago and ended in 10000 BC. Artifacts from this period have been found in the southwest of the United States, including at the well-known Folson excavations, but none had been found in Mexico, which accounts for the high level of interest in Tepexpan Man.
After the discovery and research, it was proposed to build a museum to Mexican prehistory, and this opened in 1955 as the Tepexpan Prehistory Museum.
Segunda Sección, 55884, Tepexpan, Acolman, México.
From Mexico City take the Mexico-Pirámides highway as far as the exit for Acolman. From the north of Mexico City, take the Texcoco-Lechería highway until the turn off for Tepexpan, where it joins the Mexico-Pirámides highway.
+52 (722) 215-7080, (722) 213 9581. Ext. 198031.