The first duckbill dinosaur from Africa, and the role of oceanic dispersal in dinosaur biogeography 

Duckbill dinosaurs evolved in the Cretaceous of North America. How did they end up half a world away, in Africa, which was an island continent at the time? Improbable ocean crossings may have played an important role in dinosaur evolution- and evolution in general may be driven by such low-probability, high-impact events.