What event occurred at the end of the cretaceous period
- What major event occurred at the end of the cretaceous period
- What well known event occurred at the end of the cretaceous period
- What event marked the end of the cretaceous period
- What major event happened at the end of the cretaceous period
- What significant event happened at the end of the cretaceous period
- The largest extinction event occurred at the end of the cretaceous period
- The extinction event at the end of the cretaceous period was caused by
- The greatest mass extinction event occurred at the end of the cretaceous period
- What major event marked the end of the cretaceous period
- What significant event marks the end of the cretaceous period