For over a century, the Cambrian arthropod Helmetia expansa remained a mystery. Discovered by paleontologist Charles ...

Early Cambrian fossils reveal how a small, shelled animal evolved to deal with attacks from a predator. The finds confirm a ...

Three of its weapons are visible in the fossil shown here: claws, propulsive swimming flaps, and at the base of the claws, eyes on eyestalks. The emergence of vision in the Cambrian helped both ...

It has long been suspected that the sparseness of the pre-Cambrian fossil record reflects these two problems. First, organisms may not have sequestered and secreted much in the way of fossilizable ...

Photograph by James L. Amos The iconic arthropods of the Cambrian were the trilobites, which left a huge number of fossils. Trilobites had flattened, segmented, plated bodies that helped to ...

Now, with access to uniquely well-preserved Cambrian fossils, Dr Greg Edgecombe and Dr Xiaoya Ma are seeing the evolution of vision through the world's oldest eyes. To understand the eyes of ancient ...

Animals living about 500 million years ago spent time on mudflats that were periodically exposed to the air. The finding suggests that some of the earliest animals were able to survive outside of ...

Others in the paleontological community took the fossils as evidence of a more slow and steady animal evolution than the Cambrian explosion model would suggest.Now, Bengtson says, Matz has found an ...

It has long been suspected that the sparseness of the pre-Cambrian fossil record reflects these two problems. First, organisms may not have sequestered and secreted much in the way of fossilizable ...

In a new study published in the Journal of Systematic Palaeontology, Harvard researchers in the Department of Organismic and ...