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fossils & paleontology

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

Mary Caperton Morton, Science Writer by Mary Caperton Morton 10 April 20194 October 2022

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

A photomicrograph of ten species of foraminiferans.
Posted inAGU News

How Did We Get Here?

Heather Goss, AGU Publisher by Heather Goss 1 April 201915 April 2022

With a discovery made from fossils in the seabed, paleoceanographers and paleoclimatologists began tracing the delicate path between ancient eras and our future.

Researchers digging up a Qingjiang fossil on a bank of the Danshui River
Posted inNews

Scientists Discover Pristine Collection of Soft-Tissue Fossils

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 21 March 201930 January 2023

The fossils include jellyfish, box jellies, branched algae, and sponges, which are underrepresented in or missing from other deposits.

A researcher collects a rock sample for dating
Posted inResearch Spotlights

More Evidence Humans Migrated to the Americas via Coastal Route

by Terri Cook 7 February 201928 October 2022

A new chronology shows that ice-free areas existed along the British Columbia coast earlier than previously thought.

3D rendering of an O. megalodon shark
Posted inNews

Extinct Megatoothed Shark May Have Been Warm-Blooded

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 11 December 201826 January 2023

Preliminary results from a recent study may begin to shed light on why megalodons died out before the most recent ice age.

Neanderthal and human skull
Posted inNews

Neanderthals Likely Ate Rotten Meat

Jenessa Duncombe, Staff Writer by Jenessa Duncombe 10 December 201821 July 2022

Neanderthals have long been painted as meat-eating machines. But could a new look at a dietary proxy and how it changes when meat rots uncover insights into what these extinct hominids really ate?

The Washington Monument peeks out from behind a sandstone gatepost
Posted inGeoFIZZ

Self-Guided Tour of the Geology in D. C. Buildings

by L. Strelich 6 December 201813 October 2022

The architecture of the nation’s capital reveals a secret geologic history—take a walking tour to spot the interesting fossils and minerals in the stones used to build the halls of power.

A fossil ichthyosaur, a predator that emerged in the aftermath of the Permian-Triassic mass extinction.
Posted inNews

How Did Life Recover After Earth’s Worst-Ever Mass Extinction?

Lucas Joel by L. Joel 1 November 201829 September 2022

Ocean animals at the top of the food chain recovered first after a cataclysm at the end of the Permian period. The extinction was triggered by events resembling the changes brewing in today’s oceans.

Corals hold clues into the behavior of Intertropical Convergence Zone rainfall
Posted inResearch Spotlights

Fossilized Caribbean Corals Reveal Ancient Summer Rains

Sarah Stanley, Science Writer by Sarah Stanley 20 April 201824 January 2024

Isotope records and climate modeling suggest that the rainy Intertropical Convergence Zone expanded northward into the southern Caribbean during a warm interglacial period about 125,000 years ago.

Frequent saltwater incursions make this area inhospitable, but certain microbes thrive in those conditions, creating extensive microbial mats that gradually turn into calcite and dolomite rock.
Posted inNews

Images Suggest a Viral Role in Some Rock Formation

Bas den Hond, Science Writer by Bas den Hond 26 March 201822 February 2022

Viruses might have helped transform dense bacterial colonies into a type of sedimentary rock that is frequently associated with underground oil reserves.

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