アメリカ自然史博物館のインスタグラム(amnh) - 2月27日 02時53分

This #FossilFriday is all in the family…the armadillo family, that is! This is Panochthus frenzelianus, a giant glyptodont that lived in South America, just before the extinction of the glyptodonts, at the end of the last ice age, about 30,000 years ago. Some glyptodonts grew to be over 10 feet long and may have weighed as much as a ton, including the shell.
Just this week new research by an international team of scientists, including Ross MacPhee from AMNH, that used a novel technique to recover ancient DNA revealed that instead of representing a very early, independent branch of armored xenarthrans, glyptodonts likely had a much later origin, from ancestors within lineages leading to the modern armadillo family Chlamyphoridae!
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AMNH/D.Finnin

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