Fossil treasure trove reveals post-extinction world ruled by sponges
(PHYSorg.com Archaeology & Fossils)

Exceptionally well-preserved fossil communities are always exciting, but some are more interesting than others. Fossils from particularly important times or environments can tell palaeontologists much more than those from periods already well documented. A new window into the aftermath of the second-biggest mass extinction since the rise of animals is therefore very interesting indeed.