Cartorhynchus as it may have looked in life. The amphibious reptile is the oldest known representative of the ichthyosaurs, dolphin-like marine reptiles that entered the oceans after the Permian mass ...

Ichthyosaurs were marine reptiles during the time of the dinosaurs, and scientists don't know much about their ancestry. But by CT-scanning the fossil of one of the first ichthyosaurs, scientists ...

An ancient lizard fossil believed to be the ancestor of modern skinks is shedding new light on the species. The 15-million-year-old fossil, found in north-west Queensland and analysed by Flinders ...

The acidic deterioration of dental enamel is referred to as tooth erosion. The outside of the tooth is covered and shielded by a hard material called enamel. It is also the toughest material in the ...