paleozoic
Pronunciation
Adjective
B1 Intermediate
Quick answer
Relating to the geological era spanning roughly 540 to 250 million years ago, during which fish, amphibians, and early reptiles first appeared.
Usage notes
Usually capitalized as "Paleozoic" when referring to the specific geological era.
Test yourself
Which word fits the gap? "The fossils in this layer of rock date back to the _____ era."
Answer: paleozoic
In your own words, what does "paleozoic" mean?
Relating to the geological era spanning roughly 540 to 250 million years ago, during which fish, amphibians, and early reptiles first appeared.
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