Researchers discover oldest US gun dating back almost 500 years From roughly 230-200 million years ago, during the Late Triassic and into the early Jurassic periods, dinosaurs emerged from just ...

Dinosaur poop is providing vital clues about "who ate whom" 200 million years ago. Researchers have been able to identify undigested food remains, plants and prey in the fossilized feces of the ...

A chicken-sized dino, the oldest known in North America, has thrown a wrench in the widely accepted timeline of early dinosaur history.

Largest ever animal may have been Triassic ichthyosaur super-predator New fossil discoveries show predatory marine reptiles from 200 million years ago may have been bigger than today’s blue ...