My Crossword Maker Logo
Powered by BrightSprout
Save Status:
or to save your progress. The page will not refresh.
Controls:
SPACEBAR SWITCHES TYPING DIRECTION
Answer Key:
Edit a Copy:
Make Your Own:
Crossword Word Search Worksheet
Rate This Puzzle:
Log in or sign up to rate this puzzle.

Radiation of Multicellular Life

Across
The earliest part of the Paleozoic Era is often called_______ ___
The Cenozoic Era spans from 65 million years ago to___
The peak of dinosaur diversity peaked in this period
This is the Era in which dinosaurs roamed the Earth
Down
The first period of the Mesozoic Era
The first era in the presentation
The most dramatic radiation of mammals in the Tertiary Period occurred with these
This is what is said to have struck the Earth in the end of the Cretaceous Period that is said to cause a mass extinction