from this page:https://www.earthmagazine.org/article/g ... itch-cycle
"The researchers found that the dates of the climate cycles recorded in the Newark Basin rock record match the 405,000-year cycle predicted by astronomical models, providing the first empirical evidence for the cycle’s existence and stability over the last 215 million years."
It also mentions that the cycle is due to the effects of Jupiter and Venus. I note that these are the two dominant tidal effect planets. To me this shows the stability of the solar system over very long periods of time. No big changes for Venus.