Paleontologists

This rock contains the first of the newly discovered fossils: It is a portion of a fossil lake shore that preserves very fine details of ripples produced by waves, on which a small reptile left behind footprints of its legs and tail.

Italian Hiker Discovers Animal Tracks From a Time Before Dinosaurs, Hinting at a Prehistoric Ecosystem

Revealed by melting snow in the Alps, the imprints in rock were left by reptiles and amphibians during the Permian period, which ended with the world’s largest mass extinction

This fragment of a terror bird’s left tibiotarsus, a lower leg bone in birds equivalent to that of a human tibia or shin bone, dates to around 12 million years ago during the Miocene epoch.

Rare 'Terror Bird' Fossil Found in Colombia Reveals the Enormous Size of a Prehistoric Predator

The bone, described two decades after its discovery, suggests the species might have grown up to 20 percent bigger than other terror birds

Silesaurids—including Silesaurus opolensis (pictured above) and the newly described fossil from Brazil (not pictured)—are usually considered non-dinosaurs. Some researchers are suggesting they might be more closely related to certain dinosaurs than previously thought.

A Rare Triassic Fossil Found in Brazil Could Shed Light on the Origin of Dinosaurs

The 237-million-year-old remains are among the oldest silesaurid fossils ever found, adding to paleontologists' understanding of this still-mysterious group of prehistoric reptiles

The first dinosaur fossils discovered in Hong Kong went on display last week.

Paleontologists Discover Dinosaur Fossils in Hong Kong for the First Time

The metropolis is an important center for paleontological research, but until now, fossils of plants and fish were the only remains of dinosaur-era life found there

Allosaurus

This Captivating Guide Uncovers the History and Mystery of Dinosaurs in 50 Fossils

A paleontologist at the Natural History Museum in London chronicles the age of the famous and fascinating massive reptiles

A visualization of Tiktaalik roseae, an extinct aquatic animal with fossils that shed light on the evolution of land animals from marine animals millions of years ago.

New 'Paleo-Robots' Could Shed Light on Animal Evolution, Revealing How Some Fish Evolved to 'Walk' on Land

A team of roboticists, paleontologists and biologists are building robots to simulate crucial evolutionary developments that can’t be tested with static fossils

Dinosaurs of all shapes and sizes sported feathers.

Dinosaurs Evolved Feathers for Far More Than Flight

Fluff and fuzz helped the creatures keep warm, blend in and communicate

This fossil palm leaf (Sabalites sp.) found in Alaska can be seen in the Smithsonian’s National Museum of Natural History. Sixty million years ago, dense, wet forests covered North America, and many plants, including palms, grew in places such as Alaska where temperatures are too frigid for them today. A new study published in Science gives scientists a picture of when the Earth was warm and when it was cool over the past 485 million years.

In a Landmark Study, Scientists Discover Just How Much Earth's Temperature Has Changed Over Nearly 500 Million Years

Researchers show the average surface temperature on our planet has shifted between 51.8 to 96.8 degrees Fahrenheit

A vertebra fossil of an extinct dolphin species found at the site.

Construction Project Unearths Millions of Fossils Beneath a Los Angeles High School

The discoveries include sharks, shorebirds, mammals and saber-toothed salmon, with the oldest remains dating to almost nine million years ago

A reconstruction of Lokiceratops in the 78-million-year-old swamps of northern Montana—as two Probrachylophosaurus move past in the background.

Why Did Dinosaurs Have Horns? It May Not Have Been Simply for Defense

Triceratops and its relatives may have evolved the structures for fighting, impressing mates, and more

An artist's rendition of the prehistoric sea cow's death.

Fossils Capturing a Sea Cow's Violent End Shed Light on Prehistoric Food Chains

New research suggests the dugong-like sea creature was attacked by a crocodile, then its remains were scavenged by a tiger shark—a rare series of events to be immortalized in the fossil record

Columbian mammoths were larger and less hairy than woolly mammoths.

20,000-Year-Old Columbian Mammoth Bones Discovered in Texas

While fishing at an undisclosed lake, Sabrina Solomon slipped and fell—and came face to face with the remains

A model of the Smilodon fatalis skeleton (right) on display as part of a special exhibition in Schöningen, Germany, on April 12, 2017

‘Fearsome’ Saber-Toothed Cats Needed Their Baby Teeth and Mommies, Too

According to new research, two sets of sabers and unusual lower jaw anatomy show that the saber-toothed cat Smilodon fatalis delayed adulting with a long weaning period

Archaeologists discovered stone tools at the site, though they dated to a few thousand years after the mastodon’s death. 

13,600-Year-Old Mastodon Skull Uncovered in Iowa

The hulking creature may have overlapped with Indigenous people

PaleoScan operates at Plácido Cidade Nuvens Museum of Paleontology (known by the Portuguese abbreviation MPPCN) in Brazil. For a typical procedure, multiple fossils are placed together on the calibration board to be scanned simultaneously.

This Innovative Device Allows South American Paleontologists to Share Fossils With the World

PaleoScan offers scientists at far-flung institutions a less expensive way to digitize their collections and preserve at-risk specimens of fish, turtles, pterosaurs and more

An artist's impression of the shrew-like Krusatodon kirtlingtonensis, which a new study suggests lived long and matured slowly, in contrast to modern small mammals.

Two Rare Jurassic Skulls Could Help Unlock the Secrets of Mammals' Evolutionary Success

Fossils reveal a prehistoric, mouse-like creature matured slower and lived longer than similar mammals of today

Rainforests, like this one in Ecuador, only appeared after the mass extinction that ended the Age of Dinosaurs.

No, Dinosaurs Did Not Trudge Through Thick Rainforests

The first jungles dense with flowering plants only formed after an asteroid impact wiped out the giant creatures

Prior to the auction, "Apex" was on exhibition at Sotheby’s galleries in New York.

Enormous Stegosaurus Skeleton Called 'Apex' Smashes Auction Records and Sells for $44.6 Million

The 150-million-year-old dinosaur became the most expensive fossil ever sold at auction, raising old questions about whether such specimens should be put up for sale

Asteroid impacts and volcanism have led to mass extinctions on our planet.

Has Life on Earth Survived More Than Five Mass Extinctions?

Scientists aren’t just arguing whether humans are causing a sixth mass extinction event now, but whether many more occurred in the past

The grape family had a complex, tumultuous history of extinction and dispersal in Central and South America.

Did the Extinction of the Dinosaurs Pave the Way for Grapes?

Newly discovered fossils in South America hint at the evolution and proliferation of grapes around the world

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