 Therefore, he provisionally named them as a separate genus "Ornithostoma", the name derived from Greek ὄρνις, "ornis", "bird", and στόμα, "stoma", "mouth".Seeley as yet provided no specific name.In 1891 however, he named the type species "Ornithostoma sedgwicki" Seeley 1891, apart from the snout fragments also referring to pelvis elements, claiming it was identical to "Pteranodon" and had priority.