https://www.cnn.com/2022/09/06/world/earliest-mammal-teeth-scn-scli-intl/index.html
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A shrew-like creature that lived 225 million years ago is the oldest mammal ever identified - CNN
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9/6/22 at 4:46pm
Organization
CNN
Author
Lianne Kolirin
Details
50 words
Summarize
Science Wildlife mammal CNN
The world's oldest mammal has been identified using fossil dental records -- predating the previously confirmed earliest mammal by about 20 million years -- in a new discovery hailed as "very significant" by researchers.
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