Thousands of fossilized bones from a Cretaceous-period bonebed in Wyoming, the United States, offer rare physical evidence that Tyrannosaurus rex fed on the carcasses of a duck-billed dinosaur species called Edmontosaurus annectens.

The post Tyrannosaurus rex Scavenged Duck-Billed Dinosaurs in Ancient Wyoming, Bite Marks Reveal appeared first on Sci.News: Breaking Science News.

A new genus and species of lambeosaurine hadrosaurid dinosaur has been identified in southern Alberta, Canada, dating back 77 million years to the Campanian age of the Cretaceous period.

The post New Crested Dinosaur Species Identified in Canada appeared first on Sci.News: Breaking Science News.

Paleontologists in Uruguay have identified a new species of aeolosaurine titanosaur from a pair of remarkably well-preserved tailbones unearthed in the 1980s near the Uruguay River.

The post Paleontologists Discover New Species of Titanosaur in Uruguay appeared first on Sci.News: Breaking Science News.

Today, lepidosaurs -- the reptile group that includes lizards, snakes and New Zealand’s tuatara -- are among the most diverse vertebrates on Earth, but their earliest evolutionary history remains poorly understood.

The post Tiny Triassic Reptile Sheds Light on Early Lizard Evolution appeared first on Sci.News: Breaking Science News.

Spriggina floundersi, a marine species that lived during the Ediacaran period 550 million years ago, is one of Earth’s earliest bilaterally symmetrical animals.

The post Ediacaran Sea Creature May Hold Earliest Evidence of Right-Handedness appeared first on Sci.News: Breaking Science News.

Paleontologists working in northeastern Thailand have identified a new species of mamenchisaurid sauropod dinosaur, offering fresh evidence that a group of giant sauropods once thought to be almost exclusively East Asian also roamed mainland Southeast Asia.

The post New Species of Long-Necked Dinosaur Identified in Thailand appeared first on Sci.News: Breaking Science News.