[wideminded]

I’ve never seen any indication that Australia was ever affected by an ice age. But I don’t really know, one way or another. Anybody out there know anything?

If you look up the farthest reach of the ice sheets in the northern hemisphere during previous ice ages, they never got farther south than about 39 degrees north latitude. It just so happens that the southernmost point of Australia is also about 39 degrees from the equator. So if ice sheets were of equal extent in the southern hemisphere, they would not have covered any significant amount of land in Australia.

[Lucius Cornelius Sulla]

I believe that Antarctica and Australia used to be one continent, and that Ice Ages that may have occurred back in those times would have affected the entire super continent,