Well, actually Gondwana. A fascinating article here: https://www.australiangeographic.com.au/news/2022/12/discovery-identifies-australia-as-birthplace-of-all-modern-mammals/
Research has uncovered evidence that the evolution of mammals began in the Southern Hemisphere, not the Northern Hemisphere, challenging hundreds of years of scientific dogma.
A staggering international breakthrough has led to a remarkable new understanding that all modern mammals, including humans, had their earliest beginnings in the Southern Hemisphere, with some important developments occurring in Australia, turning conventional wisdom on its head.