A 9-million-year-old fossil of a relative of the great white shark has been unearthed in Peru by paleontologists.
Discovered at 235 km south of Lima, in Peru’s Pisco basin, the nearly-complete Cosmopolitodus Hastalis fossil offers a glimpse into the past, revealing a formidable predator that once dominated the waters of the southern Pacific, where it likely preyed upon schools of sardines. The desert area is famous for frequent discoveries of ancient marine species.
The shark is believed to be an ancestor of the great white shark. It is now extinct, but its teeth once spanned up to 8.9 cm (3.5 inches) in length, while adults could grow to near seven metres in length — the size of a small boat.
Cesar Augusto Chacaltana, an engineer at the Peruvian geological and mining institute (INGEMMET), said at a presentation the shark's remains showed "exceptional fossilisation."
Researchers presented the ancient shark's remains in several glass urns, including one containing a giant, sharp-toothed jaw.
"There are not many complete shark (fossils) in the world," paleontologist Mario Urbina added at the presentation, adding the remains of numerous sardines were found inside the stomach.
Urbina noted that as anchovies did not yet exist when the shark roamed the open seas and oceans, sardines formed a staple diet for marine predators.
Peruvian paleontologists in November presented the fossil of a young crocodile that lived more than 10 million years ago off central Peru, where Pisco and the agricultural region of Ica are found.
In April last year, researchers displayed the fossilised skull of the largest river dolphin known to date, which once inhabited the Amazon some 16 million years ago.
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