A graphic reconstruction of the giant turtle Stupendemys geographicus: male (front) and female individual (left) swimming in freshwater. Credit: Artwork: Jaime Chirinos

Extinct giant turtle had horned shell of up to three meters

A reconstruction of Laurasichersis relicta which lived in the northen hemisphere 66 millons years ago. Credit: José Antonio Peñas (SINC)

One single primitive turtle resisted mass extinction in the northern hemisphere

The fossil of Gunakadeit joseeae, which was found in Southeast Alaska. About two thirds of the tail had already eroded away when the fossil was discovered. Credit: University of Alaska Museum of the North

New thalattosaur species discovered in Southeast Alaska

The holotype of the species Retrophyllum oxyphyllum (comb. nov.), previously thought to be the oldest known bamboo. Credit: Peter Wilf

‘Oldest bamboo’ fossil from Eocene Patagonia turns out to be a...

Allosaurus jimmadseni

New species of Allosaurus discovered in Utah

Illustrated scene of dinosaurs and asteroid.

In death of dinosaurs, it was all about the asteroid –...

The fossil (left) was unearthed in Wisconsin in 1985. Scientists analyzed it and discovered the ancient animal's respiratory and circulatory organs (center) were near-identical to those of a modern-day scorpion (right).

Fossil is the oldest-known scorpion

A fossilized cloudinomorph from the Montgomery Mountains near Pahrump, Nevada. This is representative of the fossil that was analyzed in the study.

Scientists find oldest-known fossilized digestive tract – 550 million years

100 million-year-old amber piece with lizard leg and mycomycete (arrow).

100 million years in amber: Researchers discover oldest fossilized slime mold

The skull of the juvenile T. rex, "Jane", was slender with knife-like teeth, having not yet grown big enough to crush bone.

Researchers learn more about teen-age T. rex

Fossil cast of a fin from a juvenile Sauripterus taylori, a late Devonian fish with primitive features of tetrapods.

How fish fins evolved just before the transition to land

Artist’s depiction of an ornithopod dinosaur tending its nest.

Baby dinosaurs found in Australia

The specimen will be stripped of the scientific name Mongolarachne chaoyangensis and rechristened as a crayfish

A ‘Jackalope’ of an ancient spider fossil deemed a hoax, unmasked...

A fossilized snail shell, ready to be analyzed in the laboratory

Earth was stressed before dinosaur extinction

An intimidating sight: Asfaltovenator vialidadi. Source: Gabriel Lio

Experiments in evolution

This slab of sandstone has been on display since 1896, showing off the scaly footprints of a prosauropod dinosaur. Scientists only recently realized that the deep grooves on the left may be the track of a sailing stone. Credit: Lull, R.S., 1915

Sailing stone track discovered ‘hiding in plain sight’ in dinosaur fossil

A modern-day sea lily in the Marianas region. Credit: (c) NOAA Ocean Research and Exploration

480 million year old fossils reveal sea lilies’ ancient roots

Illustration of the newly described Kupoupou stilwelli by Jacob Blokland, Flinders University. Credit: Jacob Blokland, Flinders University

When penguins ruled after dinosaurs died

New research is shedding light on how and where ancient flying reptiles called pterosaurs lived. Credit: Julius Csotonyi

95-million-year-old fossil reveals new group of pterosaurs

A representation of a plesiosaur - living reconstruction

Divers of the past : Plesiosaur – Why did the size...

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