MEXICO CITY.- Iconographic studies of Teotihuacan murals confirm the extension of the lineage of a ruler of the ancient city of Tikal, Guatemala, already revealed by epigraphists of the Maya area. The aforementioned investigation sums up to interpretations of Stele 31 of Tikal that relate to the dynastic line of Atlatl-Cauac (“Dart-thrower Owl”), possible ruler of Teotihuacan between 374 and 439 AD, and whose son, Yax Nuun Ayiin I, was seignior of Tikal. The emblem of this lineage would be represented by the image of a bird with a shield, observed in Teotihuacan murals, declared Dr. Raul Garcia Chavez, researcher at the National Institute of Anthropology and History (INAH). There would be a relation between the register at Tikal and other Maya sites of late 4th century, which refers to the son of Atlatl-Cauac, Yax Nuun Ayiin I, as ruler of Tikal between 379 and 404 AD, commented the researcher during his participation