The Keller Natural History Museum
Welcome
Welcome to the Natural History GTS Website!
Precambrian Time
Precambrian Time Life Forms
First Mass Extinction
Paleozoic Era
Paleozoic Era Life Forms
Paleozoic Mass Extinction
Mesozoic Era
Mesozoic Era Life Forms
Mesozoic Mass Extinction
Cenozoic Era
Cenozoic Era Life Forms
The Mesozoic Mass Extinction
The Mesozoic Mass Extinction happened 66 million years ago. An asteroid struck Earth to make the extinction happen. Most of the animals died. Lots of dust and water vapor flew into the air That wraps up the Mesozoic Era.