 "Ojoraptorsaurus's" fossa is further away from the acetabular rim than those of the other species, a feature characteristic to the genus.Among compared oviraptorosaurians, "Ojoraptorsaurus" is most similar to "Epichirostenotes", a genus differentiated from "Chirostenotes" in the same paper that "Ojoraptorsarus" was described in.By comparing pubic proportions with those of CM 78001 ("Anzu"), "Ojoraptorsaurus" has been estimated to have been about 1.8 to 2.1 meters (5.9 to 6.9 feet) in length, about 20% smaller than "Epichirostenotes".