A day lasted only about 23-and-a-half hours. The Earth turned faster than it does today. The new study used lasers to sample tiny slices of a mollusk's shell and count the growth rings. When dinosaurs ...

Of the modern turtle’s many distinct features, nothing stands out more than its iconic shell. But paleontologists have discovered a 228 million-year-old fossilized turtle that is not only missing its ...

The fossil remains of some of the first animals with shells, ocean-dwelling creatures that measure a few centimeters in length and date to about 520 million years ago, provide a window on evolution at ...

The bizarre fossil is one of very few records of soft tissue in a creature better known as a whorled shell. By Sabrina Imbler If anxious humans have nightmares of being naked in public, an anxious ...