July 2, 2005 |
A 210-million-year-old creature scientists once thought to be a dinosaur is actually an ancient ancestor of crocodiles, say researchers who uncovered the first complete skeleton of Revueltosaurus callenderi. Before the skeleton discovery, scientists had classified the creature as a dinosaur based on its teeth. The findings call into question the identity of several other members of the ornithischian family of dinosaurs that have also been identified only by their teeth.
May 15, 2005 |
Don't talk to Don and Kathy Wilkening about the movie "Jurassic Park." The same goes for TLC or Discovery Channel programs that show paleontologists unearthing a completely intact dinosaur skeleton with the swing of a pickax and the swipe of a finishing brush. "It's not three brushstrokes and into the Smithsonian," said Don, who along with his wife hosts weekend and weeklong classes at the Pioneer Trails Regional Museum here. "That's not real paleontology."
May 5, 2005 |
Guided by a black-market fossil dealer, researchers found an ancient killing field where as many as a million dinosaur bones from a previously unknown species were embedded in two acres of primordial mudstone, scientists in Utah said Wednesday. The mass graveyard preserves a 130-million-year-old species caught in the act of evolving into a vegetarian, the researchers said.
April 16, 2005 |
Paleontologists have identified a new dinosaur species, an early relative of Tyrannosaurus rex that roamed what is now the southeastern U.S. about 77 million years ago. The scientists made the identification from hundreds of fossilized fragments collected mostly in Montgomery County, Ala., and southwestern Georgia. They named the new dinosaur Appalachiosaurus montgomeriensis, which means "the Appalachian lizard from Montgomery County." The 25-foot-long creature lived 10 million years before T.
February 17, 2005 |
Two skulls unearthed in Ethiopia may be the oldest known human fossils, dating from the dawn of modern humanity 195,000 years ago, a new analysis shows. In research made public Wednesday, scientists recalculated the age of the two skulls, discovered in 1967, concluding that they were about 30,000 years older than any other human fossils.
January 22, 2005 |
Paleontologists working in Ethiopia have discovered the remains of at least nine primitive human ancestors up to 4.5 million years old. The specimens are Ardipithecus ramidus, a transitional creature with significant ape characteristics. The fossils are mostly teeth and jaw fragments, with some hand and foot bones, the team reported this week in the journal Nature.
CALIFORNIA | LOCAL
January 12, 2005 |
Construction of the missing link in the state's power transmission system has produced a startling discovery of a different sort: a cache of fossils from a prehistoric grassland so rife with wildlife that scientists have dubbed it California's ancient Serengeti.
December 4, 2004 |
Scientists have found well-preserved fossils of a new dinosaur species that lived 225 million years ago in southern Brazil but had its closest relatives in what is now Europe, Brazilian paleontologists said Thursday. "That sheds light on life on Earth when there was one super-continent here," said Alexander Kellner of the National Museum of Rio de Janeiro Federal University.
November 20, 2004 |
A 13-million-year-old fossil of an ape, discovered in Spain, is from the last probable common ancestor of humans and great apes, Spanish researchers reported this week in the journal Science. A team of fossil sleuths unearthed an animal with a body like an ape, fingers like a chimp and the upright posture of humans. The ancient ape bridges the gap between earlier, primitive animals and later, modern creatures.
October 28, 2004 |
On an isolated Indonesian island, scientists have discovered skeletons of a previously unknown human species -- tiny, Hobbit-sized figures who lived among dwarf elephants and giant lizards as recently as 12,000 years ago. Experts in human origins called the discovery, made public Wednesday, of an extinct human species barely 3 feet tall the most important -- and surprising -- human find in the last 50 years.