Extraction of the article's timeline with years ago zero padded to illustrate time spans: 66,000,000: the cataclysmic impact of the Chicxulub asteroid 66,0

Extraction of the article's timeline with years ago zero padded to illustrate time spans: 66,000,000: the cataclysmic impact of the Chicxulub asteroid 66,000,000: end of the dinosaur age 66,000,000: mammals began to dominate the lands once ruled by dinosaurs. 27,000,000: formation of the Panamanian land bridge 27,000,000: Great American Biotic Interchange. 00,200,000: fossilized shell of a loggerhead sea turtle (Caretta caretta) perished in the cave 00,025,000: first Homo sapiens crossed into America over the Bering Land Bridge at least 00,013,000: evidence found in the cenotes points to human settlements 00,013,000: first Homo sapiens arrived on the Yucatán Peninsula at the end of the last ice age 00,013,000: end of the last ice age 00,010,000: megafauna species abrupt extinction 00,008,000: evidence of paleoart 00,008,000: last time the shallow caves on the Yucatán Peninsula flooded 00,004,000: The Maya established their civilization on the Yucatán Peninsula