More than 250 million years before the first dinosaur, the most fearsome killers on Earth may have been lobsters. Yawunik kootenayi, a common ancestor to spiders, shrimp and butterflies, was a predatory "lobster-like" creature that ruled the seas half a billion years ago.
As reported this week in the journal Paleontology, fossils of Yawunik were recently unearthed from Marble Canyon, part of the renowned Burgess Shale rock formation of British Columbia. This massive fossil bed holds specimens of many sea creatures that lived during the Cambrian period, the geologic era that saw a rapid diversification of marine life forms.
For the entire story and photos click here
Journal reference: Paleontology