Question

paleontologists identified a gap in fossil records for a time period of approximately 245 years ago. what do they think happened during this time period ? 1. A change in humidity prevented animal remains from fossilizing. 2. An unknown catastrophic event killed off most living creatures. 3.Gradual climate change made the atmosphere unable to support life. 4. The break up of Pangaea disturbed Earth's crust so that all remains were lost.

Answer 1

A change in humidity and The break up of Pangae