Please help do not guess
50 points

What is the range of time of the Devonian time period?



What is the name of the EON we are in now?





During what period saw the earliest amphibians?



From what time period is the cooksonia fossil from?


How many million years ago saw the extinction of dinosaurs?



What range of time did trilobites exist on earth?



During what time period saw the last advance and retreat of continental ice sheets?



Looking at the inferred position of the continents, what direction did North America move in the last 232 million years>



Judging by your answer to question 9, what has happened to the climate of North America during the last 232 million years? Explain your answer.