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Latest Mesozoic Stories

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2010-08-24 09:30:00

The amount of available living space--not competition, as Darwin believed--may have been the catalyst of evolution, according to a new study published in the August 23 edition of Biology Letters. As part of the study, researchers at the University of Bristol analyzed the fossils of birds, mammals, reptiles, and amphibians dating as far back as 400 million years ago. According to BBC News science reporter Howard Falcon-Lang, "the scientists showed that the amount of biodiversity closely...

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2010-08-10 20:20:00

The Gondwana supercontinent underwent a 60-degree rotation across Earth's surface during the Early Cambrian period, according to new evidence uncovered by a team of Yale University geologists. Gondwana made up the southern half of Pangaea, the giant supercontinent that constituted the Earth's landmass before it broke up into the separate continents we see today. The study, which appears in the August issue of the journal Geology, has implications for the environmental conditions that existed...

2010-01-21 13:38:23

One hundred million years ago the earth looked very different from how it does today. Continents were joining and breaking apart, dinosaurs were roaming the earth, and flowering plants were becoming more widespread. The southern hemisphere supercontinent known as Gondwana formed around 180-200 mya during the breakup of Pangaea and then began to split apart about 167 mya. As scientists reconstruct the history of these land masses and life during this period, many questions arise. For example,...

2009-10-30 23:35:43

Named dinosaurs may actually be juvenile or subadults of already known taxa Paleontologists from the University of California, Berkeley, and the Museum of the Rockies have wiped out two species of dome-headed dinosaur, one of them named three years ago "“ with great fanfare "“ after Hogwarts, the school attended by Harry Potter. Their demise comes after a three-horned dinosaur, Torosaurus, was assigned to the dustbin of history last month at the Society of Vertebrate Paleontology...

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2009-10-06 07:50:00

Carnivorous but smaller T. rex relative shared environment with larger cousins Now, just a few weeks after tiny, early Raptorex kriegsteini was unveiled, a new wrench has been thrown into the family tree of the tyrannosaurs. The new Alioramus altai"”a horned, long-snouted, gracile cousin of Tyrannosaurus rex"”shared the same environment with larger, predatory relatives. A paper published this week in the Proceedings of the National Academy of Sciences describes this exceptionally...

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2009-07-03 10:50:00

Scientists in Australia have reported the discovery of three new species, including one agile predator that lived 98 million years ago.Writing in the peer-reviewed journal, PLoS ONE, Scott Hocknull and colleagues at the Queensland Museum and the Australian Age of Dinosaurs Museum of Natural History noted the discovery of two large herbivorous sauropods and one carnivorous theropod in the Winton Formation in eastern Australia.Australia doesn't have a noteworthy fossil record, and many...

2009-06-25 11:55:55

University of Chicago paleontologist Paul Sereno says Psittacosaurus gobiensis is the first dinosaur species that ate mainly nuts. Sereno, who discovered fossils of the 3-foot-long dinosaur in Inner Mongolia in 2001, said the skull features of the dinosaur that lived 110 million years ago are reminiscent of a parrot, the Chicago Sun-Times said Thursday. The parallels in the skull to that in parrots, the descendants of dinosaurs most famous for their nut-cracking habits, is remarkable, said...

dbaefb84bb46f3a27fe065aa951bbaa41
2009-06-02 13:55:00

A Triceratops skull auctioned in New York sold for $242,000, nearly double its expected sale price, while an Alioramus remotus skull sold for $206,000. Bonhams auction house, which did not reveal the names of the winning bidders, said the three-horned dinosaur skull was expected to sell for only $125,000 while the skull of the Alioramus remotus, a cousin of the Tyrannosaurus, was expected to sell for a maximum $140,000, the New York Post reported Tuesday. The Triceratops skull, which measures...

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2009-01-13 14:13:53

Early dinosaurs were likely to have used their feathers for looks rather than for flight or staying warm, researchers reported on Monday. Researchers formed their hypothesis after studying two 125-million-year-old dinosaur fossils discovered in China. The Beipiaosaurus fossils depicted individual feathers as represented by a single broad filament, Xing Xu of the Institute of Vertebrate Paleontology and Paleoanthropology in Beijing and colleagues wrote in the Proceedings of the National...

2008-12-08 13:25:56

U.S. scientists using computerized tomography scanning have found dinosaurs had much larger air cavities in their heads than had been thought. Ohio University Professor Lawrence Witmer and research associate Ryan Ridgely examined skulls from two predators, Tyrannosaurus rex and Majungasaurus, as well as two ankylosaurian dinosaurs, Panoplosaurus and Euoplocephalus. For comparison, the scientists said they also studied scans of crocodiles and ostriches, which are modern day relatives of...


Latest Mesozoic Reference Libraries

Othniel Charles Marsh
2013-10-14 09:50:48

Othniel Charles Marsh (October 29, 1831 – March 18, 1899) was an American paleontologist, specializing primarily in vertebrates. He is highly renowned as one of the most prominent scientists of his time, having discovered and described dozens of new species. Marsh is also credited with developing what is currently the most widely accepted theory of the origin of birds. Marsh was born in Lockport, New York, to a family of moderate means. Thanks to the generosity of his uncle, George...

Styracosaurus
2013-04-29 14:54:48

Styracosaurus, meaning “spiked lizard” from the Ancient Greek styrax “spike at the butt-end of a spear-shaft” and sauros “lizard” was a genus of herbivorous ceratopsian dinosaur from the Cretaceous Period, about 76.5 to 75 million years ago. It had four to six long horns, stretching from its neck frill, a smaller horn on each cheek, and a single horn jutting out from its nose, which may have been up to 2 feet long and 6 inches wide. The function/functions of these horns and frills...

Thescelosaurus
2013-04-28 18:48:11

Thescelosaurus, meaning “godlike”, “wondrous”, or “marvelous” and “lizard” was a genus of small ornithopod dinosaur that appeared at the very end of the Late Cretaceous period in North America. It was a member of the last dinosaurian fauna before the Cretaceous-Paleogene extinction event around 65.5 million years ago. The completeness and preservation of many of its specimens illustrate that it might have preferred to live near streams. This bipedal ornithopod is known from...

Daspletosaurus
2013-04-28 18:27:18

Daspletosaurus, meaning “frightful lizard” is a genus of tyrannosaurid theropod dinosaur that resided in western North America between 77 and 74 million years ago, during the Late Cretaceous Period. Fossils of the only named species were found in Alberta, although other possible species from Alberta and Montana wait for description. Daspletosaurus is closely related to the much larger and more current Tyrannosaurus. Like most of the known tyrannosaurids, it was a multi-ton bipedal...

Megalosaurus
2013-04-28 14:57:47

Megalaosaurus, meaning “Great Lizard”, from Greek megalo, meaning ‘big’ or ‘tall’ and sauros, meaning “lizard”, is a genus of large and meat-eating theropod dinosaurs of the Middle Jurassic period of Europe. It’s significant as the first genus of dinosaur, outside of birds, to be described and named. Megalosaurus might have been the first dinosaur to be described in scientific literature. Part of a bone was recovered from a limestone quarry at Cornwell by Chipping Norton,...

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