The Chicxulub Impactor/asteroid is the latest speculation about what killed off the Dinosaurs approx. 65 million years ago. "TIME/history has been measured/recorded in different chronologies/timelines all throughout written history (pre-history is anyone's guess).
The FOMENKO chronolgy and others that we know of are WRITTEN HISTORY, but PRE-history can only be speculated.
In the Egyptian MIDDLE KINGDOM (there were 3 kingdoms total) Chronology, the Battle of Megiddo (in Hebrew it's name is Har-megeddon) was fought in 1479 B.C. (the dinosaurs were millions of years earlier).