Sunday, November 20, 2011

Atacama Desert - Fossil Bonanza Poses Mystery - Whales In The Desert - News

SANTIAGO, Chile More as compared with couple of million a long time ago, rates with whales congregating journey Pacific Coast involving South America strangely met their end.

Maybe these people became disoriented in addition to beached themselves. Maybe we were looking at captured in a lagoon simply by a landslide or a storm. Maybe they will perished there through your interval of the few millennia. But somehow, that they ended up suitable near to one another, a lot of just meters (yards) apart, entombed for the reason that superficial ocean level seemed to be tempted upside by geological aids and also transformed into the driest spot on the planet.

Today, they've blossomed once again atop a leave hill additional over a kilometer (half a mile) in the surf, in which researchers have begun in order to unearth one of the international best-preserved graveyards involving prehistoric whales.

Chilean scientists combined with researchers through the Smithsonian Institution usually are studying exactly how these whales, the majority of the them the size associated with buses, ended up while in the exact nearby on the Atacama Desert .

"That's the top question," said Mario Suarez, director from the Paleontological Museum in the in close proximity town associated with Caldera, related to seven hundred kilometers (440 miles) north regarding Santiago, your Chilean capital.

Experts express additional groups associated with prehistoric whales are actually found together within Peru and also Egypt, even so the Chilean fossils jump out for their unbelievable number plus beautifully preserved bones. More as compared to 75 whales are already learned until now including a lot more than thirty perfectly intact skeletons.

They give a snapshot with ocean life in the time, and in many cases include what likely have been a family group group: a couple of mature whales which includes a juvenile somewhere between them.

"I think they perished approximately at exactly the same time," said Nicholas Pyenson, curator of fossil marine mammals on the Smithsonian's National Museum involving Natural History. Pyenson along with Suarez will be jointly major your research.

As intended for why this kind of superb amount perished in similar place, Pyenson said: "There are numerous tactics that whales may possibly die, plus we are however tests all those numerous hypotheses."

The exceptional possess yet to distribute their information regarding the fossil bed as well as substantial remains, which started to help present themselves inside June not too long ago within a highway-widening project that is certainly right now on hold.

So far, the fossils are actually found in some sort of roadside strip the particular span involving a couple of footballing job areas concerning 240 meters (260 yards) long and 20 meters (yards) wide.

Pyenson said your spot has been when a "lagoon-like environment" plus that the whales probably kicked the bucket concerning 2 million and 7 trillion years ago.

Most on the fossils tend to be baleen whales which measured with regards to 8-10 meters (25 feet) long, Pyenson said.

The scientists in addition found out some sort of sperm whale skeleton and continues regarding a now-extinct dolphin that acquired two walrus-like tusks plus previously had solely resulted in inside Peru, he / she said.

"We're really anxious about that," Pyenson explained inside a telephone interview. "It is a very peculiar animal."

Other unusual animals found in a different place from the fossil-rich Atacama Desert consist of a good extinct marine sloth along with a seabird that has a 5-meter (17-foot) wingspan, bigger over a condor's.

Erich Fitzgerald, a new vertebrate paleontologist during Museum Victoria around Melbourne, Australia, emailed that the hottest come across is extremely significant.

"The fossils are usually very properly maintained and fairly finish a rare collaboration in paleontology then one that will in all likelihood simplify a lot of sides in the . ecology as well as progress of these extinct species," Fitzgerald said.

He claimed it depends "these fossilized is always might have accrued over the reasonably long period with time."

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