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Spinosaur tooth from the Wealden seen from two different angles.

Multiple species of semi-aquatic dinosaur may have roamed pre-historic Britain

Close up image on one wall showing numerous depressions of hadrosaur footprints. The ice ax in the lower left of the frame is approximately 3 feet long, for scale. Photo by Patrick Druckenmiller

Scientists explore dinosaur ‘Coliseum’ in Denali National Park

The fossilized cervical vertebra and overlaying osteoderms of the new archosaur species Mambachiton fiandohana. © Nesbitt et al.

New archosaur species shows that precursor of dinosaurs and pterosaurs was...

The fossil showing the entangled skeletons of the dinosaur (Psittacosaurus) and the mammal (Repenomamus). Scale bar equals 10 cm.

Unusual fossil shows rare evidence of a mammal attacking a dinosaur

Two Vectipelta barretti - copyright Stuart Pond

Ankylosaur: New armoured dinosaur discovered

Dinosaur Photo: MICHAEL ROSSKOTHEN/MostPhotos

Dinosaurs were the first to take the perspectives of others

Argentinosaurus is still widely considered the heaviest dinosaur. Based on its mid-range estimate, it weighed the same as about nine T. rexes or 13 African elephants!

What was the largest dinosaurs?

Artist’s impression of two Troodons with a common nest. Illustration: Alex Boersma/PNAS

Analysis of dinosaur eggshells: Bird-like Troodon laid 4 to 6 eggs...

A juvenile Edmontosaurus disappears into the enormous, lipped mouth of Tyrannosaurus. Credit Dr Mark Witton

Predatory dinosaurs such as T. rex sported lizard-like lips

Therizinosaurs claw hooking and pulling trees Credit: Shuyang Zhou for the 3D modelling and functional scenario restoration

Dinosaur claws used for digging and display

Microscopic view of a carnivorous dinosaur's shin bone, showing growth rings that get more closely spaced towards the outside of the bone, indicating that this individual reached adulthood.

Evolution of dinosaur body size through different developmental mechanisms

Artist's impression of Ceratosuchops & orientation of skull endocast. Credit: Anthony Hutchings

Oldest spinosaur brains revealed

(A) Completely unhatched egg from the clutch P43. (B) Almost fully intact circular outline of egg possibly indicating it to be unhatched and no loose eggshells are found in the clutch P6. (C) Compressed egg from clutch DR10 showing hatching window (arrow showing gap) and few eggshells collected just around the hatching window (circled) which possibly represent the remnants of hatching window. (D) Egg from clutch P26 showing curved outline. (E) Deformed egg from clutch P30 showing egg surfaces slipping past each other. Credit: Dhiman et al., 2023, PLOS ONE, CC-BY 4.0 (creativecommons.org/licenses/by/4.0/)

Researchers uncover 92 fossil nests belonging to some of India’s largest...

A figure from the study showing teeth from a megaraptor dinosaur from various view points. The black tooth preserves most of the tooth crow. The tan tooth is missing the crown apex and base. Credit: Davis et al.

Fossils Reveal Dinosaurs of Prehistoric Patagonia

Fig. 1: Some adult individuals watch over the newly-hatched Europasaurus chicks which are leaving the nest to join their herd. Commissioned artwork by Davide Bonadonna.

What the inner ear of Europasaurus reveals about its life

Artist’s life reconstruction of adult and newly born Triassic ichthyosaurs Shonisaurus, 2022. Credit: Gabriel Ugueto.

Giant extinct marine reptile graveyard was likely ancient birthing grounds

Dinosaur ancestors are shown in this artist's conception of life in the Chañares formation approximately 235 million years. Credit: Victor O. Leshyk / www.paleovista.com

Climate change played key role in dinosaur success story

Paleohistological transverse sections of select elements of (A) large- and (B) medium-bodied individuals of the Eutaw ornithomimosaurs, and (C) relative body-size of the Eutaw ornithomimosaurs within known ornithomimosaur taxa through a geological time. Credit: Tsogtbaatar et al., CC-BY 4.0 (https://creativecommons.org/licenses/by/4.0/)

Ostrich-like dinosaurs from Mississippi are among the world’s largest at over...

Jeholornis. Image courtesy of Han Hu et al.

Fossil bird’s skull reconstruction reveals a brain made for smelling and...

Scleromochlus taylori. Credit: Gabriel Ugueto

Triassic specimen found to be early relative of pterosaurs a century...

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