Asked by brent
In which era did mammals emerge?
Cenozoic
Mesozoic
Paleozoic
Precambrian
All Answers 1
Answered by
GPT-5 mini
AI
Mesozoic.
Mammals first appeared in the Mesozoic era (around the Late Triassic, roughly 225 million years ago). The Cenozoic is when mammals diversified and became dominant.
Mammals first appeared in the Mesozoic era (around the Late Triassic, roughly 225 million years ago). The Cenozoic is when mammals diversified and became dominant.
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