Wonderful image by Julio Lacerda.
Another great theropod discovery for 2012! A nesting colony of Romanian enantiornithes (the diverse family that occupied many niches) was found in, well, Romania, where fossils have yielded such wonderful discoveries like Hatzegopteryx and Balaur, as well as Telmatosaurus. The cause of death? A flood is most likely. I also have to agree with Mr. Naish here when I say Julio seemed to reconstruct the enantiornithes to look like birds, not crazy feathered-dragon monsters. Oh yeah I found my new favorite word: dortokids. It's the family those turtles in the image belong to.