Two of the earliest mammal groups of the period likely were discerning about the types of insects they ate.
Its name might be a tongue-twister, but Leikupal Laticauda has vaulted into the upper reaches of dinosaur stardom. Why? Because it lived after almost nothing else did.
Ancient fossils now reveal that the deep sea may be the origin of many lineages of sea creatures found closer to the surface, such as a number of sea stars, sea urchins and snails.
The bones of seven huge dinosaurs that each weighed more than a dozen elephants and had femurs bigger than a human adult have been discovered in Argentina.
An asteroid impact crater in France is getting the honor of giving the "terrible lizards" their chance to take over the Triassic.
Pterosaurs ruled the sky with a body form that worked for 70 million years.