https://www.usatoday.com/story/news/world/2022/09/08/worlds-oldest-mammal-225-years-ago-study/8020494001/
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9/8/22 at 2:38pm
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USA Today
A tiny animal called Brasilodon quadrangularis is the world's oldest known mammal – with records dating back 225 million years – a new study says.
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