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Early lineages of mammal like this large Gobiconodon from Mongolia, outcompeted the ancestors of modern mammals in the time of dinosaurs. Credit: Corbin Rainbolt

Mammals in the time of dinosaurs held each other back

Geology Page - May 22, 2021

Hesperornis image provided by the Yale Peabody Museum of Natural History. (Photo: Robert Lorenz)Hesperornis image provided by the Yale Peabody Museum of Natural History. (Photo: Robert Lorenz)

What can a dinosaur’s inner ear tell us? Just listen

"Hollywood" specimen, same species as Teratophoneus, discovered approximately two miles north of the "Rainbows and Unicorns Quarry" on Grand Staircase-Escalante National Monument. Credit: U.S. Bureau of Land Management

Fearsome tyrannosaurs were social animals, study shows

Over approximately 2.5 million years, North America likely hosted 2.5 billion Tyrannosaurus rexes, a minuscule proportion of which have been dug up and studied by paleontologists, according to a UC Berkeley study. (Image by Julius Csotonyi, courtesy of Science magazine)

How many T. rexes were there? Billions

The world's smallest stegosaur footprint (less than 6 cm long), Xingjiang, China. Photo credit - Lida Xing.

Tiny cat-sized stegosaur leaves its mark

Research at Mines Unearths New Dinosaur Species

Geology Page - May 6, 2013

Dinosaur Whodunit: Solving A 77-Million-Year-Old Mystery

Geology Page - May 5, 2013

Dinosaur Egg Study Supports Evolutionary Link Between Birds and Dinosaurs

Geology Page - May 5, 2013

New Dinosaur Fossil Discovered in China

Geology Page - May 4, 2013

Dinosaur Predecessors Gain Ground in Wake of World’s Biggest Biodiversity Crisis

Geology Page - April 30, 2013

Fish Was On the Menu for Early Flying Dinosaur

Geology Page - April 27, 2013

New Carnivorous Dinosaur from Madagascar Raises More Questions Than It Answers

Geology Page - April 20, 2013

World’s Oldest Dinosaur Embryo Bonebed Yields Organic Remains

Geology Page - April 11, 2013

New Evidence Dinosaurs Were Strong Swimmers

Geology Page - April 10, 2013

Four Dinosaur Egg Species Identified in Lleida, Spain

Geology Page - April 2, 2013

Dinosaur-Era Climate Change Study Suggests Reasons for Turtle Disappearance

Geology Page - April 1, 2013

Inside the Head of a Dinosaur

Geology Page - March 28, 2013

New Evidence Suggests Comet or Asteroid Impact Was Last Straw for...

Geology Page - March 24, 2013

Megavolcanoes Tied to Pre-Dinosaur Mass Extinction

Geology Page - March 23, 2013

North America’s Biggest Dinosaur Revealed

Geology Page - January 21, 2012

Fossil of an Armored Dinosaur Hatchling: Youngest Nodosaur Ever Discovered

Geology Page - September 27, 2011

Primitive Birds Shared Dinosaurs’ Fate

Geology Page - September 23, 2011

Scientists Discover Rare Theropod Dinosaur Wounded in Action in Southern Utah

Geology Page - September 22, 2011

Tree Resin Captures Evolution of Feathers On Dinosaurs and Birds

Geology Page - September 17, 2011

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