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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...

A depiction of an asteroid heading toward Earth, with the moon in the background. (Image credit: Juan Gartner via Getty Images)

The largest meteorite impacts on Earth

Scleromochlus taylori. Credit: Gabriel Ugueto

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

Asteroid impact earth

Dinosaur-killing asteroid triggered global tsunami that scoured seafloor thousands of miles...

Artistic reconstruction of Mbiresaurus raathi (in the foreground) with the rest of the Zimbabwean animal assemblage in the background. It includes two rhynchosaurs (at front right), an aetosaur (at left), and a herrerasaurid dinosaur chasing a cynodont (at back right). Illustration courtesy of Andrey Atuchin.

Discovery and naming of Africa’s oldest known dinosaur

Anak Krakatau in Lampung, Indonesia, in 2018

What killed dinosaurs and other life on Earth?

Fossil of Opisthiamimus gregori Fossil skeleton of the new lizard-like reptile Opisthiamimus gregori. The fossil was discovered in the Morrison Formation of the Bighorn Basin, north-central Wyoming, and dates to the Late Jurassic Period, approximately 150 million years ago. Credit: David DeMar for the Smithsonian Institution.

Discovery of extinct prehistoric reptile that lived among dinosaurs

Earth is bombarded at random-GeologyPage

More than one asteroid could have spelled doom for the dinosaurs

Thalassotitan atrox grew up to 12 metres (40 feet) and was at the top of the food chain.

Fossils of giant sea lizard that ruled the oceans 66 million...

Skull and life reconstruction of Tyrannosaurus rex with original eye socket and eye (left) and hypothetical reconstruction with circular eye socket and enlarged eye (right). (Image credit: Dr Stephan Lautenschlager, University of Birmingham).

Dinosaurs evolved different eye socket shapes to allow stronger bites

Computer modelling showed sauropod feet had a soft tissue pad. Image: Dr Andreas Jannel

Prehistoric podiatry: How dinos carried their enormous weight

Spinosaurid dinosaurs teeth

The speed at which spinosaurid dinosaur teeth were replaced accounts for...

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