Dinosaur

How mean was this new Argentine dinosaur? It had a croc leg in its jaws

Joaquinraptor probably fed on plant-eating dinosaurs including juveniles of the enormous long-necked titanosaurs that populated the area, duck-billed hadrosaurs and possibly others.

An artist's impression of the Cretaceous meat-eating dinosaur Joaquinraptor, whose fossilized remains were unearthed in Argentina's Patagonia region, is shown in this image released on September 23, 2025.
‘Time-Capsule’ bones of Huayracursor illuminate the rise of later giants like Argentinosaurus.

‘Time-Capsule’ bones of Huayracursor illuminate the rise of later giants like Argentinosaurus

The dinosaur egg, found while broadcast live.

Perfectly preserved dinosaur egg found during live broadcast

An artistic reconstruction of Newtonsaurus cambrensis. Background art by Jonathan Metzger.

Scientists identify oldest large dinosaur predator from Welsh fossil found 125 years ago - study


Why this small dinosaur from Mongolia is rewriting the story of dome-headed evolution

Dated to about 108 million years ago, the fossil preserves roughly 90 percent of the skeleton, including the first pachycephalosaur hand and stomach stones.

Artist illustration of Z. rinpoche.

Unveiling the Age of Dinosaur Eggs: A Groundbreaking Study

Chinese researchers directly date dinosaur eggs using new carbonate uranium-lead method

Egg clutch sampled for the study.

Unearthed in Morocco's Atlas Mountains: a 165-million-year-old 'porcupine' dinosaur

The unique and striking neck armor of Spicomellus Afer must have been energetically expensive to form and carry, suggesting it served a display function rather than practical use.

A life reconstruction of Spicomellus afer.

Meet the dinosaur named after a sailing legend - it had a sail of its own

A new Isle of Wight species honors Dame Ellen MacArthur, sporting spine sails possibly evolved for love, not heat.

Istiorachis artist impression.

‘One-Ounce Wonder’: Mouse-Sized Dino-Era Species Found in Patagonia

Unearthed in Chilean Patagonia, the 74-million-year-old Yeutherium pressor is the smallest known South American mammal from the dinosaur era.

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Asteroid the size of 3 T. rex dinosaurs to pass Earth Sunday - NASA

Asteroid 2025 PM is around the size of three Tyrannosaurus Rex dinosaurs. The asteroid won't hit the Earth, according to NASA calculations, and even if it did... life finds a way.

An illustrative image of an asteroid near the Earth.

Texas Floods Reveal Ancient Dinosaur Footprints

A paleontologist said the footprints were left by carnivorous dinosaurs similar to Acrocanthosaurus, and are approximately 110 to 115 million years old.

Dinosaur tracks revealed after floods.

Paleontologists Reveal How a 200-Million-Year-Old Dinosaur Rewrites East Asian History

Researchers recovered three adult skeletons, five egg clutches and well-preserved bones from Wuding County’s Lower Jurassic strata.

Illustration: A sauropodomorph at an Australian museum.

Researchers Name Jurassic Swimmer ‘Plesionectes Longicollum’ After Long Storage

The nearly complete 2.95 meter skeleton was forgotten since 1978.

A reconstruction of Plesionectes Longicollum.

Evidence of First Mixed-Species Dinosaur Herd Found in Canada's Badlands

In just 29 square meters researchers documented footprints from at least five ceratopsians, one ankylosaurid, one small theropod and two large tyrannosaurids moving in the same direction.

Views of the Skyline Tracksite. shortly after discovery (A) and following excavation (B).

Museum finds 67.5-million-year-old dinosaur fossil beneath parking lot

The fossil vertebra, found 763 feet underground, offers a rare glimpse into the late Cretaceous period.

 Museum finds 67.5-million-year-old dinosaur fossil beneath parking lot.