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dinosaurs

Artistic interpretation in which part of Earth is seen from above, and a bright trail of light pierces clouds and ends in what looks like an explosion
Posted inNews

Impact Crater off the African Coast May Be Linked to Chicxulub

by Katherine Kornei 19 September 202213 October 2022

The underwater crater, spotted serendipitously in commercial observations of seafloor sediments, is believed to have formed at roughly the same time as the famous Cretaceous-Paleogene impact event.

An artist’s rendering of North America in the weeks following the Chicxulub impact shows freezing conditions and skies hazy with sulfate aerosols.
Posted inScience Updates

A Post-Impact Deep Freeze for Dinosaurs

by Aubrey Zerkle 2 September 202222 February 2023

New research supports the hypothesis that dinosaurs were done in by climate change after an asteroid impact kicked up a massive plume of sulfur gases that circled the globe for several decades.

A Velociraptor with white, black, and red feathers runs with its mouth open.
Posted inNews

Volcanic Winters Ushered in the Jurassic Reign of the Dinosaurs

by Katherine Kornei 31 August 202222 March 2023

Sediment cores from northwestern China reveal freezing conditions during the Late Triassic killed off many forms of life—but not dinosaurs.

Yellow and orange swirls color a chunk of Navajo sandstone in Grand Staircase.
Posted inFeatures

When Climate Ruled the Dinosaurs of Grand Staircase

by Mary Caperton Morton 30 December 202115 April 2022

Living in Geologic Time: Navigate the prolific boneyards and shifting boundaries of Grand Staircase-Escalante and Bears Ears National Monuments.

A fossil of Zhenyuanlong suni, a feathered dinosaur from the Early Cretaceous
Posted inResearch Spotlights

Cool Oasis for Cretaceous Feathered Dinosaurs

by Rebecca Dzombak 1 October 202111 January 2022

A new study found that the Jehol Biota had chilly temperatures and high altitudes when feathered dinosaurs roamed the slopes.

Image of a long-necked dinosaur with trees in the background.
Posted inNews

A Dip in Atmospheric Carbon May Have Facilitated Dinosaur Dispersal

by Katherine Kornei 23 March 20212 September 2022

Herbivorous dinosaurs migrated north across Pangea beginning about 214 million years ago, coincident with a downturn in atmospheric carbon dioxide levels.

A 3D computer illustration of Hesperosuchus, an extinct genus of crocodylomorph reptiles
Posted inNews

A Little-Known Mass Extinction and the “Dawn of the Modern World”

by S. Norris 9 November 202027 October 2022

Volcanic eruptions in what is now western Canada may have triggered a million years of rain and a mass extinction that launched the reign of the dinosaurs.

The Chicxulub impact event, framed by fluffy clouds and flying pterosaurs
Posted inNews

Asteroid Impact, Not Volcanism, Likely Spelled Dinosaurs’ End

by Katherine Kornei 21 July 202010 November 2021

Using climate and habitat modeling, researchers show that solar dimming caused by an asteroid impact would have plunged the world into an “impact winter” and decimated dinosaur habitats.

Photo of a fossil display of T. rex chomping down on Triceratops
Posted inNews

Dinosaurs Roar Again, Now Including a Focus on Climate Change

by Randy Showstack 4 June 201915 April 2022

The newly renovated fossil hall at the Smithsonian’s National Museum of Natural History features spectacular fossils and includes a theme of human impact on life on Earth.

A white man in a fedora looks into the gaping maw of a T. rex fossil.
Posted inNews

King of the Tyrannosaurs Goes on Display

by Mary Caperton Morton 10 April 20194 October 2022

The biggest, oldest T. rex found to date shows how big tyrannosaurs could get.

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By Luke C. Skinner and Edouard Bard

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