La Brújula Verde

Zapotec Lunar Calendar Found to Be 857 Years Older Than the Earliest Known Maya Example

Researchers from the University at Albany (SUNY) and SUNY Plattsburgh have managed to decipher an ancient lunar count system ...
Live Science

Earliest evidence of Maya divination calendar discovered in ancient temple

Archaeologists in Guatemala have discovered the oldest evidence of the Maya calendar on record: two mural fragments that, when pieced together, reveal a notation known as "7 deer," a new study finds.
insider.si.edu

Examples of Maya pottery in the Museum and other collections / edited by G.B. Gordon

At head of title: University of Pennsylvania. The University Museum. The specimens of pottery are from Guatemala, Honduras, British Honduras, Yucatan and Chiapas, Mexico. Pts. 2 & 3 edited by J. Alden ...