Romn said the discovery also reinforces the idea that Tikal was a cosmopolitan center at that time, a place where people visited from other cultures, affirming its importance as a center of cultural convergence.

Mara Beln Mndez, an archaeologist who was not involved with the project, said the discovery confirms "that there has been an interconnection between both cultures and what their relationships with their gods and celestial bodies was like."

"We see how the issue of sacrifice exists in both cultures. It was a practice; it's not that they were violent, it was their way of connecting with the celestial bodies," she said.