Mar 14, 2025 · The heaviest known dinosaur is thought to be Argentinosaurus, a supermassive titanosaur that lived during the Cretaceous period. It may have weighed up to 180,800 pounds …

Jul 6, 2021 · Some meat-eating dinosaurs shrank over time and evolved into birds. So, in that sense, only the non-avian dinosaurs went extinct. (For the purposes of this article, "dinosaurs" …

May 7, 2025 · The most iconic American dinosaur was a migrant from Asia." Gargantuan sizes. The new study also modeled how tyrannosaurids (the group of dinosaurs that T. rex belongs …

Mar 25, 2025 · Related: 166 million-year-old fossil found on Isle of Skye belongs to pony-size dinosaur from Jurassic Therizinosaurs are a group of dinosaurs that lived across what is now …

Jun 11, 2025 · A new species of dinosaur that was probably a princely ancestor of T. rex, the king of the dinosaurs, has been identified from fossils excavated in Mongolia.

May 1, 2025 · The dinosaurs were not in decline before the asteroid hit, a new study finds. Instead, poor fossilization conditions and unexposed late Cretaceous rock layers mean they're …

Jan 10, 2025 · A newfound "chicken-size" dinosaur, recently unearthed in Wyoming, changes what paleontologists thought they knew about how dinosaurs spread across the globe. When …

May 15, 2025 · Amber deposits in Japan show unique deformations that suggest trees were swept out to sea during a tsunami about 115 million years ago, giving paleontologists a new way to …

Feb 26, 2025 · A new study has revealed that "hug of death" megaraptorids and previously unknown carcharodontosaurs shared Australia's unique Antarctic dinosaur ecosystem during …

Jan 13, 2025 · The early sauropod relative was discovered in 2007 in the Lufeng Dinosaur National Geopark in Yunnan Province, southern China. It grew to massive proportions — …