Science sorry i put it in the wrong category
View the chart below and answer the questions.


Geologic Time Scale


Time Period Duration (Millions of Years)

Cenozoic 66-0

Mesozoic 252-66

Paleozoic 541-252

The last members of the species Tyrannosaurus Rex lived approximately 68-66 million years ago. During which era did the last Tyrannosaurus live?


Trilobites appeared approximately 521 years ago and disappeared approximately 252 million years ago. During which era did the trilobites live?


According to the chart, what period are we in today?