Trilobites are one of the most common fossils we know, but normally only their hard exoskeleton is preserved. Now, researchers have discovered a site that was buried by a Pompeii-style volcanic eruption, leaving the arthropods outlined in exquisite detail Trilobites are one of the most common fossils we know, but normally only their hard exoskeleton is preserved. Now, researchers have discovered a site that was buried by a Pompeii-style volcanic eruption, leaving the arthropods outlined in exquisite detail New Scientist – News