The Day The Mesozoic Dieded

The video that i watched was about how scientists didn't know what killed the dinos or when they were killed. So they researched and they explored all around the world about this and discovered that none of the dinosaur fossils were above the KT boundary. That gave them the idea that they should compare the fossils above and below the boundary. They also discovered that the meteor that caused it all was under the Yucatan Peninsula. They even figured out that the meteor hit the edge of one of the continents and the seafloor was pushed into little rocks.