A conceptual rendering suggests how Earth's land elevations and oceans may have appeared during the assembly of Kenorland, left, and later, right, after the Great Oxygenation Event. A University of Oregon-led study has potentially narrowed the window on when significant amounts of land emerged from under the ocean's surface.

Land rising above the sea 2.4 billion years ago changed planet...

Apalone spinifera spiny softshell turtle

Genome structure of dinosaurs discovered by bird-turtle comparisons

Cambrian predator and stem-lineage euarthropod Anomalocaris canadensis from the Burgess Shale, Canada.

Major fossil study sheds new light on emergence of early animal...

Stygiopontius senokuchiae

Japanese student discovers new crustacean species in deep sea hydrothermal vent

Establishing a time scale for 10 million years ago

Oviraptorosaurs

How does a one-tonne dino hatch its eggs?

sea-lilies

Major shift in marine life occurred 33 million years later

Yellowstone National Park

Yellowstone ‘extremely relevant’ to origin of life

Fossil record reveals changes in Earth’s movement and rotation

Magyarosuchus fitosi

Jurassic fossil tail tells of missing link in crocodile family tree

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