What surprised you about the correct sequence of events?

I was surprised how old the jellyfish were.  I was also surprised at how old bees are.

What have you learned from making your time line and sequencing events on it about the appearance of different life-forms on Earth?

I learned about Panagea and how it all split apart.  I also learned that there were two extinctions.  i leaded about   that bees  appear  before  flowers