Scientists: "Jurassic Mother" Rat is Man's Oldest Mammalian Ancestor
August 26, 2011 9:21 AM
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An artist depicts "Jurassic mother", the earliest known ancestor of man, merrily scampering through trees in the hunt for juicy bugs.
(Source: Mark A. Klinger / Carnegie Museum of Natural History)
The discover was made in China's northern Liaoning province, which borders North Korea.
(Source: Wikimedia Commons)
The skeleton was painstakingly reconstructed to reveal its secrets.
(Source: Nature/Beijing Museum of Natural History)
The fossil was dated to 160.7 million years old +/- 0.4 million years, making it the oldest known placental mammal. The fossil was dated by measuring radioactive argon in surrounding sanidine deposits.
The 160-million year old mammal marked the split between placental mammals and marsupials
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You dirty rat!
8/27/2011 7:45:06 PM
You killed my great great great great great great great...
...great great great great great grandfather's brother!
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