A few things:Something big happened circa 68k years ago i.e the Indian plate movement, Toba volcano etc with root cause unknown. There were two main events predating these i.e. the entry of Venus 80K years ago and destruction of Kantek 79K years ago.
- Venus was first captured a thousand years before Kantek destruction, but it probably took Venus thousands of years for its first pass in the inner solar system (and it may not have been close to Earth).
- The C's have said that the Jurassic and Triassic continental configurations (creation of the Atlantic ocean) were around 70K years ago. Which does suggest that Pangaea probably started breaking up during the Kantek cataclysm around 80K years ago.
- The Toba supervolcano is usually dated to around 75K years ago (probably aftermarh of Kantek destruction).
- If India moved quickly during a cataclysm, it seems more likely that it was the one around 50K years ago, since around 70K the continents still had no more than Jurassic configuration (with India in its old place, attached to or close to Gondwana in the south).