Today, the upheavals of plate tectonics continually reshape Earth. When this began is much disputed - and we can’t fully understand how life began to thrive on our planet until we figure it out ...

Back when the Earth was crawling with trilobites ... the Ordovician period—which ran between 485.4 million years and 443.8 million years ago—including the positions of 21 impact craters ...

The study suggests the Zanclean Megaflood ended the Messinian Salinity Crisis, which lasted between 5.97 and 5.33 million years ago. A new study ... known floods in Earth's history," said Dr ...