Hollanda is a fairly large Euornithine from the Barun Goyot Formation of Mongolia, living about 72 million years ago, in the Maastrichtian age of the Late Cretaceous. It is only known from some partial hind limbs, however these toes were interesting in themselves - it had long, slender legs and fused toe bones, which made them very strong and robust. This implies that it was a fast running ground forager, similar to a modern roadrunner, chasing fast-moving prey in its desert environment. It’s body size was probably about 50 centimeters, and, like other Euornithines, it probably still had teeth in the back of its jaw, though without further remains this is only conjecture.
Sources:
Martyniuk, M. P. 2012. A Field Guide to Mesozoic Birds and other Winged Dinosaurs. Pan Aves; Vernon, New Jersey.
