Showing posts with label Smithsonian National Museum of Natural History. Show all posts
Showing posts with label Smithsonian National Museum of Natural History. Show all posts

Thursday, May 8, 2008

Unresolved: The Mystery of the Crystal Skulls

Even before Indiana Jones, there were already the crystal skulls of Mexico which captured the imagination of historians and laymen alike.

For more than a century, a handful of skulls, maybe a dozen (or so) of them purportedly discovered among ancient ruins and believed to be of Mesoamerican origin, stirred controversy and tales of aliens and remnants of the lost city of Atlantis.

The said skulls gained the public's interest since they were carved with such detail and accuracy that it was hard to believe they were made using ancient implements. Some believed their purposes were more than just ceremonial. Professor Michael Smith of the Arizona State University says skulls were prominent in ancient Middle American, specifically Aztec culture, where gods were portrayed as such.

Research done by the British Museum and the Smithsonian Institution revealed that modern tools could have been used to carve and polish the skulls. Thus, the earliest dates that were given them were late nineteenth century. An accurate material dating isn't forthcoming, and thus, the conclusion is only speculative without any hard evidence. Still, no such skulls had ever been found in any official excavation.

Notwithstanding the findings, the crystal skulls will remain either on display or stored in that place where mysterious objects are crated for future research.

Read about the Steven Spielberg movie on the subject and view the trailer, click here.

Monday, April 23, 2007

Fossilized Rainforest Preserved in Coal Mine

Scientists called it a natural Sistine Chapel with the frescoes consisting of fossilized leaves, intserspersed with pillar-like trunks of trees long dead. Estimated to be 300 millin years old, the forest is mainly exposed on the ceiling of the mine shaft.

William DiMichele, curator of fossil plants at the Smithsonian National Museum of Natural History says "It was an amazing experience. We drove down the mine in an armored vehicle, until we were a hundred meters below the surface. The fossil forest was rooted on top of the coal seam, so where the coal had been mined away the fossilized forest was visible in the ceiling of the mine.”

Pictured is pteridosperm, an extinct seed-producing fern-like plant. It is courtesy of Howard Falcon-Lang. The unique find is located in Vermillion County, just south of Danville, Illinois in the US.