Hesperornis regalis (Extinct Diving Bird)

Skeletal structure from fossil remains of a flightless, wingless, diving bird of the late Cretaceous.  Reduced wings may have been used for steering and the powerful hind legs were closely associated with the body trunk.  This makes the probability of them standing erect highly unlikely however this would have provided powerful locomotion when submerged.  Hesperornis sp. also had toothed beak which historically provided a strong link between birds and dinosaurs (raptors).