Seems a bit odd why we only have one about arctic ice thread. Well, antarctic ice extent is greater than the 2018, 2017, 2008, 2002, 1990, 1989, 1986, 1984 and 1979 maxima. So it doesn't look like they'll be managing to make a frightening headline out of this statistic this year. Next up are 1992 and 2001 with less than 100000 square km over today's extent. With a bit of luck we'll get there by the end of the week.
From the article "Now experts say they have found the most southerly evidence yet of this environment in plant material extracted from beneath the seafloor in west Antarctica.
The Cretaceous, 145m to 66m years ago, was a warm period during which Earth had a greenhouse climate and vegetation grew in Antarctica.
Scientists say the new discovery not only reveals that swampy rainforests were thriving near the south pole about 90m years ago but that temperatures were higher than expected. Such conditions, they add, could only have been produced if carbon dioxide levels were far higher than previously thought and there were no glaciers in the region."
But it isn't jungle at the South pole - because the Earth's crust in that area was not at the South pole yet... and continental drift is nothing to do with CO2.
Nobody has any idea of what the ocean currents would be around the breakup of Pangea but dependent where the spreading was occurring the sea floor sample could have been quite a way North.