A 444-million-year-old fossil named "Sue" preserves internal organs of Keurbos susanae, raising questions about arthropod ...

Calcium phosphate looks chalky when new, but can darken to black when subjected to heat ... Without knowing anything about the biology of brachiopods, choose the fossil that is preserved as original ...

A 444-million-year-old fossil without a shell or limbs has been discovered in South Africa with soft tissues intact.

It’s really rare to find hatchlings of fossil turtles in general, as the bones in their shells are so thin they can be easily destroyed,” he commented, as per the Natural History Museum.