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fossils & paleontology

A computer rendering of a Brachiosaurus. Herbivores like brachiosaurs likely helped distribute nutrients through their poop.
Posted inNews

Signatures of Dinosaur Poop Found in Cretaceous Coal Seams

Katherine Kornei, Science Writer by Katherine Kornei 31 October 20174 October 2021

Coal analysis suggests that plant-eating dinosaurs, by walking kilometers between their picnic areas and their toilets, distributed important nutrients widely and boosted ecosystem health.

Dissolved silicon in ocean sediment reveal the hidden past of Pacific currents
Posted inResearch Spotlights

Microfossils Illuminate Ancient Ocean Currents

Elizabeth Thompson by Elizabeth Thompson 23 October 20174 May 2022

Researchers use dissolved silicon concentrations to map out how currents may have changed millennia ago in the Pacific.

Posted inResearch Spotlights

Earth's Carbon-Climate Feedbacks Varied in Past Warming Episodes

by Terri Cook 29 November 201626 January 2023

Records from drill holes in the eastern equatorial Pacific indicate that Earth's orbital eccentricity played an important role in controlling climate as the planet warmed.

cyanobacteria coated in clay minerals
Posted inNews

How Did Fragile Early Microbes Become Fossils?

Lucas Joel by L. Joel 12 August 201630 January 2023

During the Ediacaran period more than a half billion years ago, clay mineral coats likely shielded delicate remains, helping them become exquisitely preserved in rock, recent experiments suggest.

Artist’s reconstruction of fossil plankton from the Eocene.
Posted inScience Updates

Characterizing Superwarm Periods in Earth's History

by D. J. Lunt 2 August 201623 February 2023

DeepMIP Kickoff Meeting; Boulder, Colorado, 14–15 January 2016

Posted inNews

More Acidic Oceans Could Reduce Fertility for Algae Eaters

by Lauren Lipuma 29 February 201620 April 2022

New research shows that increased levels of carbon dioxide in the oceans cause changes that alter key nutrients essential to the reproduction of animals low on the food web.

Posted inNews

Plankton Reveal New Secrets About Ancient CO2 Levels

by N. Jacewicz 16 December 20154 May 2022

An analysis of phytoplankton shells doubles previous estimates of the amount of carbon dioxide in the atmosphere 11 million years ago.

Posted inResearch Spotlights

Correlating Monsoon Strength with Boron Isotopes

by C. Minnehan 19 October 20152 March 2023

Scientists tell the story of the past monsoon by measuring boron isotopes in organisms in the Arabian Sea.

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Features from AGU Journals

RESEARCH SPOTLIGHTS
Geophysical Research Letters
“Neural Networks Map the Ebb and Flow of Tiny Ponds”
By Sarah Derouin

EDITORS' HIGHLIGHTS
Community Science
“Collaboration Helps Overcome Challenges in Air Quality Monitoring”
By Muki Haklay

EDITORS' VOX
Reviews of Geophysics
“What We Know and Don’t Know About Climate Tipping Elements”
By Seaver Wang

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