Jurassic fossil sheds light on evolutionary origins of thorny-headed worms / Punk and Emo fossils rock our ideas of how ancient molluscs looked / Discovery of 'Punk' and 'Emo' fossils challenges our understanding of ancient mollusks / 520-million-year-old larva fossil reveals the origins of arthropods / 'My jaw just dropped': Exceptionally well-preserved tiny worm fossil uncovered / 520-million-year-old worm fossil solves mystery of how modern insects, spiders and crabs evolved / A 'trilobite Pompeii': Perfectly preserved fossils of ancient sea critters found buried in volcanic ash / New fossils provide evidence for an 'Age of Monotremes' / Molecular fossils study sheds light on feeding strategy shift in ancient life