answersLogoWhite

0


Best Answer

Devonian to cretaceous is the the geological age of ammonoids They first appeared during the Devonian Period (approximately 410 million years ago). They almost died out at the end of the Permian Period (251 million years ago), and again at the end of the Triassic Period (205 million years ago). They finally became extinct at the end of the Cretaceous Period (65 million years ago), perhaps as a result of a lowering of ocean levels.

User Avatar

Wiki User

14y ago
This answer is:
User Avatar
More answers
User Avatar

Wiki User

13y ago

This cephlapod suborder existed from the lower Triassic to the upper Cretaceous. All of the Mesozoic Era.

This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: What period of time did ammonites live in?
Write your answer...
Submit
Still have questions?
magnify glass
imp