Unenlagia comahuensis
"half-bird from Comahue"

My third try at Unenlagia, the very cool bird/dinosaur from South America. This is entirely speculative, as the only known remains of Unenlagia are from the hips and hind limbs, which you can't see here. The rest is based on the closely related unenlagiine Buitreraptor. Discovered in 2005, Buitreraptor shows that at least some of these birds had profiles decidedly different from dromaeosaurines, with long, narrow snouts (possibly indicating piscivory). Another new addition is also unprecedented in all my paleoart--grass! For years the common wisdom was that grass did not evolve until the Cenozoic era, but (also in 2005) dino dung was found in South America with grass in it. So some type of grass did exist along side the dinosaurs, at least in southern Gondwana.