1.What two events set eras?

2.What existed over most prairies?

Please help.

I meant what existed over most prairies in the mesozoic era.

dinosaurs?

Thank you for using the Jiskha Homework Help Forum. Hopefully, this site will help you:

http://www.britannica.com/eb/article-69925/Mesozoic-Era

Similar Questions
    1. answers icon 1 answer
  1. Which statement explains why ammonites are a good example of an index fossil?(1 point) O Ammonites existed only in the oceans. O
    1. answers icon 1 answer
    1. answers icon 1 answer
  2. why are ammonites a good example of an index fossil?ammonites existed in a small geographic area ammonites existed for a
    1. answers icon 1 answer
more similar questions