fossils

A remarkable new species of meat-eating dinosaur, Allosaurus jimmadseni, is described based on two spectacularly complete skeletons

Over a half-billion years ago, life on Earth was comprised of simple ocean organisms unlike anything living in today's oceans

Cardiff University scientists have shed new light on the Earth's climate behavior during the last known period of global warming over 14 million years ago

New 96-million-year old turtles from Texas connect North America with Asia and the Southern Hemisphere

Fossilized seashells show signs of global warming, ocean acidification leading up to asteroid impact

When and how animal ancestors made the transition from single-celled microbes to complex multicellular organisms has been the focus of intense debate

Research team discovered Nanopithecus browni near Kanapoi, Kenya, far from the habitat of other guenons

With fossils from more than 80 individual dinosaurs, Auroraceratops rugosus, an early horned dinosaur, is one of the best represented dinosaur species ever found

Researchers trace back the origin of this group to a small benthic shark from the Middle Jurassic 

While scientists have long known about an unusual pattern in the fossil record, they have struggled to explain it