that was when the earth hit a warm state during a current iceage. supposely we are only 15k into a 26k iceage so who knows. utah moab area was a rver under a ocean at one time. atleast when dinos roamed and its said the slot canyons and moab which maybe dinos died off at being of our iceage and maybe a few survived being down in meso america and such considering mayans or aztecs have depictions of them riding dinos. thoths tablets were supposely hidden under the temple in yucatan mexico. it was the emerald tablets look them up. supposely egyptians priest took them there to hide them when thoth went into halls of amenti.