In 1881 Harry Govier Seeley recognized PIUW 2349/3 as a femur belonging to Dinosauria and erected the new genus and species Ornithomerus gracilis for it.
In 1881, Harry Govier Seeley identified PIUW 2349/3 as a femur belonging to Dinosauria and established the new genus and species *Ornithomerus gracilis* for it.