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Latest Saurischians Stories

d253e83d6246d06c9610a5f0ad6142ec1
2011-01-14 05:45:00

Scientists have unveiled fossils of one of the earliest dinosaurs ever discovered -- a petite, nimble carnivore from the late Triassic period some 230 million years ago. Dubbed Eodromaeus, or "dawn runner", the never-before seen species was a small, two-legged creature that may have been among the first dinosaurs to roam the Earth, making them likely ancestors of the famous Tyrannosaurus rex. The scientists reconstructed the dinosaur from a nearly complete set of bones found in Ischigualasto,...

827a10944f05c531ba9736c95a2c224e
2009-12-10 15:55:00

A team of paleontologists has unearthed a previously unknown meat-eating dinosaur from a fossil bone bed in northern New Mexico. The discovery settles a long-standing debate about early dinosaur evolution, and reveals a period of explosive diversification.  It also hints at how dinosaurs spread across the supercontinent Pangaea. A description of the new species, named Tawa after the Hopi word for the Puebloan sun god, appears in the Dec. 10 issue of the journal Science. The...

9b35b4966f1fd2b51d6f378df42adb9e1
2007-07-19 20:45:00

WASHINGTON -- Dinosaurs shared the Earth for millions of years with the species that were their ancestors, a new study concludes. Dinosaurs arose in the Late Triassic, between 235 million and 200 million years ago, and came to dominate the planet in the Jurassic, 200 million to 120 million years ago. Scientists had thought the dinosaurs rapidly replaced their ancestor species. Indeed, until 2003, when a creature called Silesaurus was discovered in Poland, no dinosaur precursors had been found...


Latest Saurischians Reference Libraries

45_45bc7a70438d165e6ff7e15476def75d
2011-02-25 17:38:22

Staurikosaurus, meaning "Southern Cross lizard," is a genus of dinosaur from the Carnian age of the Late Triassic Period (225 million years ago). The first known specimen was recovered from the paleontological site Jazigo Cinco of the Santa Maria Formation, in Rio Grande do Sul, Brazil. The genus name refers to the star constellation, "The Southern Cross," pictured in the coat of arms of Brazil, which is only visible in the southern hemisphere. In 1970, when Staurikosaurus was first...

66_0efc1a5701de69b1808a8cc5fa24da7a
2010-02-02 14:38:24

Agnosphitys, meaning "unknown begetter", is a genus of dinosaur from the Norian and Rhaetian ages of the Late Triassic Period. The only species known is A. cromhallensis. It was described in 2002 by Fraser, Padian, Walkden and Davis. A partial skeleton was found in Avon, England. It is sometimes mistakenly called Agnostiphys. Agnosphitys may not be an actual genus of dinosaur. It lies very close to the ancestry of dinosaurs, but researchers are not sure exactly where this animal should be...

0_7afff02bbcb68b39a43418fef5eea6b2
2009-07-28 14:20:22

Eoraptor was one of the world's earliest known dinosaurs. It lived between 230 and 225 mya (million years ago), in what is now known as Argentina. Several well-preserved skeletons have been found and it is believed that the Eoraptor resembles the common ancestor of all dinosaurs. The type species is E. lunensis, which means "dawn plunderer of the Moon". The fossils were first discovered in 1991 by University of San Juan paleontologist Ricardo Martinez in the Ischigualasto Basin of Argentina....

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