For decades, paleontologists have debated whether Nanotyrannus is a separate species or simply a juvenile T. rex. (Credit Raul Martin)

‘Juvenile T. rex’ fossils are a distinct species of small tyrannosaur

A mosasaur discovered in Japan was the most complete skeleton ever found in Japan or the northwestern Pacific. Graphic/Takuya Konishi

This Japanese ‘dragon’ terrorized ancient seas

Meteorites

More than a meteorite: New clues about the demise of dinosaurs

Fossilized Trisauropodiscus tracks and modern bird tracks. Credit: Abrahams et al., CC-BY 4.0 (creativecommons.org/licenses/by/4.0/)

Exploring bird-like footprints left by unknown animals in Late Triassic Southern...

Ancient plate tectonics in the Archean period differs from modern plate tectonics in the Phanerozoic period because of the higher mantle temperatures inside the early Earth, the thicker basaltic crust, and the non-depletion of melt-mobile incompatible trace elements in the mantle. Credit: Science China Press

Plate tectonics in the Archean: Observation versus interpretation

Fossil of Timorebestia koprii—the largest known specimen, almost 30 cm or 12 inches long. Image Credit: Dr Jakob Vinther

‘Giant’ predator worms more than half a billion years old discovered...

Limbunyasphaera operculata is a new species that shows a small door opening into the cell. Photo Credit: Riedman et al.

Even the oldest eukaryote fossils show dazzling diversity and complexity

Fossilized skin. Credit: Current Biology/Mooney et al.

Oldest known fossilized skin is 21 million years older than previous...

Three-dimensional model of the only known picrodontid skull in top (left) and bottom (right) views. CT scan technology revealed previously unknown bones of the skull (colored on the right) that helped demonstrate that picrodontids are not primates as previously believed. Three-dimensional model of the only known picrodontid skull in top (left) and bottom (right) views. CT scan technology revealed previously unknown bones of the skull (colored on the right) that helped demonstrate that picrodontids are not primates as previously believed.

New research sheds light on an old fossil solving an evolutionary...

The map of Nankai Trough in southeast Japan, where one of the team’s ongoing project is to image the fluids underneath seafloor. (Credit: Dr Lina GAO)

New geophysical technique enhances imaging of fluid-filled rocks finding connections with...

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