The Cretaceous is a geologic period spanning approximately 145 to 66 million years ago, forming the final period of the Mesozoic Era. It is characterized by high eustatic sea levels, extensive epicontinental seas, and a warm greenhouse climate with minimal polar ice. Tectonically, it saw continued breakup of Pangea, expansion of the Atlantic Ocean, and major episodes of oceanic plateau and large igneous province formation. Biologically, it is marked by diversification of angiosperms, complex marine plankton communities, and dominant non-avian dinosaurs, and it terminates at the Cretaceous–Paleogene boundary, defined globally by a mass extinction horizon and an iridium-rich layer.
A research team from Okayama University of Science, Tokyo City University, the Natural History Museum, Kishiwada City (Osaka Prefecture), and other institutions has identified four previously unrecognized fossil bones from ...
Paleontology & Fossils
Jul 20, 2026
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Tyrannosaurus rex was a giant of the prehistoric world, standing up to 13 feet (4 meters) tall and weighing around 9 tons (8 tonnes). So you might expect that its hatchlings were also a considerable size.
A collection of fossilized dinosaur bones from Wyoming features tooth marks that provide evidence that some bites were likely made by Tyrannosaurus rex, according to a study published July 15, 2026, in PLOS One by Bethania ...
Paleontology & Fossils
Jul 15, 2026
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A Tyrannosaurus rex fossil billed as one of the world's largest and most complete specimens sold for a record $50.1 million Tuesday to a mystery bidder.
Paleontology & Fossils
Jul 14, 2026
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One of the world's most complete Tyrannosaurus rex skeletons, nicknamed "Gus," was showcased Wednesday at Sotheby's auction house in New York ahead of its sale later this month.
Paleontology & Fossils
Jul 2, 2026
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The first dinosaur fossil found on the Antarctic continent has been described scientifically. The fossil, a vertebra, was found on a British Antarctic Survey (BAS) expedition in 1985 but has only recently been recognized ...
Paleontology & Fossils
Jun 29, 2026
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Traces or perforations caused by living organisms after an animal's death can be found on various dinosaur bone remains. These perforations, known as bioerosion structures, provide information that helps us understand relationships ...
Ecology
Jun 26, 2026
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A new study published in Zoological Journal of the Linnean Society describes, for the first time in detail, the soft tissues preserved in Montsecosuchus depereti, a Lower Cretaceous crocodylomorph from the Pedrera de Meià ...
Paleontology & Fossils
Jun 17, 2026
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When an asteroid struck Earth about 66 million years ago, it ended the age of dinosaurs and transformed life across the planet. The effects of that catastrophe are visible in the fossil record on land, but scientists know ...
Paleontology & Fossils
Jun 4, 2026
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A fossil bed in northwestern China is littered with the remains of hundreds of prehistoric birds—including some whose broken bones were crushed into pellets, similar to those coughed up by modern owls. For years, scientists ...
Paleontology & Fossils
Jun 4, 2026
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