You do understand the word "FORESTS"Tropical sea shells come from under the water. That's what happens when the ice cap melts. A whole lot more of the planet is under water ... including, where most of our species lives.
..."RIGHT"?
(repetition for emphasis
Some 55 million years ago, during the early Eocene Epoch, ELLESMERE Island in Canada's eastern High Arctic was warm and ice-free. It was also home to lush lowland forests and swamps inhabited by alligators, giant tortoises, snakes, lizards, and a host of mammals that included primates, tapirs, hippo-like Coryphodon, and large, rhino-like brontotheres.
https://www.thecanadianencyclopedia.ca/en/article/ellesmere-island-eocene-fossils
Professor John Marshall has accurately dated the forests to 380 million years.
https://www.southampton.ac.uk/news/2...il-forest.page
Fossilized Tropical Forests Found In Arctic
https://www.popsci.com/fossilized-tr...und-in-arctic/