This undated photo released by Mexico's National Anthropology and History Institute shows divers from the Great Mayan Aquifer project (L) exploring the Sac Actun underwater cave system, where Mayan and Pleistocene bones and cultural artifacts have been found submerged, near Tulum, Mexico. (AP Photo) https://www.hindustantimes.com/world-news/ancient-human-remains-ice-age-animal-bones-found-in-giant-mexican-cave/story-RVrSjUorkMFPPuLS5stTlO.html
The Bible manuscripts refers to that earth age cataclysm (overthrow) as the Katabole. Not to be confused with Noah’s flood that came at a latter date. A lot of bible scholars date that event to around 14,000 years ago, fwiw.