The current configuration of continents is unlikely to be the last. Supercontinents have formed several times in Earth's history, only to be split off into new continents. Right now, Australia is inching toward Asia, and the eastern portion of Africa is slowly peeling off from the rest of th...
A maximum age constraint was placed on the root of 409.4 million years: the age of the split between tetrapods and lungfish inferred by a recent molecular clock study58. To account for the uncertainty surrounding the relationships and ages of taxa, 100 time calibrated trees were generated. For...
That land mass, which straddled the equator like an ancient Pac-Man, eventually split into Gondwana in the south and Laurasia in the north. From there, Gondwana and Laurasia separated into the seven continents that we know today. But the constant movement of Earth's tectonic plates raises a...