The species actually survived the mass extinction event of 250 million years ago and lived another 120 million years.
via Discovery News http://news.discovery.com/animals/sharks/ancient-mini-sharks-lived-longer-than-thought-131030.htm#mkcpgn=rssnws1
via Discovery News http://news.discovery.com/animals/sharks/ancient-mini-sharks-lived-longer-than-thought-131030.htm#mkcpgn=rssnws1
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