This period also saw diversification of dinosaur species, including the spawning of Tyrannosaurus rex.
Germany's Maastricht Formation contains fossils from this geologic period, which saw the split of Africa and South America. It is geologically significant both for the large amounts of chalk formed during this period and for a layer of iridium known as the K-T boundary, which is believed to have been deposited by an asteroid. This period also saw diversification of dinosaur species, including the spawning of Tyrannosaurus rex. For 10 points, name this final period of the Mesozoic Era, whose end saw the mass extinction of the dinosaurs.
Germany's Maastricht Formation contains fossils from this geologic period, which saw the split of Africa and South America.
{Cretaceous} Period