was followed by Veldmeijer; however, Veldmeijer rejected O. simus as the type species in favor of O. compressirostris (alternately Lonchodectes), and he used the names Criorhynchus simus and Criorhynchus mesembrinus instead. Formerly assigned species In 2013, Rodrigues and Kellner found Ornithocheirus to be monotypic, containing only O. simus, and placed most other species in other genera, or declared them nomina dubia. They also considered O. platyrhinus a junior synonym of O. simus. Misassigned species: O. compressirostris (Hooley, 1914) = Pterodactylus compressirostris Owen, 1851 [now classified as Lonchodectes] O. crassidens Seeley, 1870 = [now classified as Amblydectes] O. cuvieri (Seeley, 1870) = Pterodactylus cuvieri Bowerbank, 1851 [now classified as Cimoliopterus] O. curtus (Hooley, 1914) = Pterodactylus curtus Owen, 1874 O. giganteus (Owen, 1879) = Pterodactylus giganteus Bowerbank, 1846 [now classified as Lonchodraco] "O." hilsensis Koken, 1883 = indeterminate Neotheropoda O. mesembrinus (Wellnhofer, 1987) = Tropeognathus mesembrinus Wellnfofer, 1987 O. nobilis (Owen, 1869) = Pterodactylus nobilis Owen 1869 O. sagittirostris (Seeley, 1874) [now classified as Serradraco O. simus (Owen, 1861) [originally Pterodactylus] (type) O. sedgwicki (Owen, 1859) = Pterodactylus sedgwickii Owen 1859 [now classified as Aerodraco] "O." wiedenrothi Wild, 1990 = [now classified as Targaryendraco] Cimoliornis diomedeus, Cretornis hlavatschi, and Palaeornis clifti, originally misidentified as birds, were once referred to Ornithocheirus in the past, but recent papers have found them to be distinct; Cimoliornis may be closer to azhdarchoidea, Cretornis is a valid genus of azhdarchid, and Palaeornis was shown to be a lonchodectid in 2009. O. buenzeli (Bunzel 1871, often misspelled and incorrectly attributed as O. bunzeli, Seeley 1881), cited in the past as evidence of Late Cretaceous ornithocheirids, has since been re-identified as a likely azhdarchid as well.<ref name=buenzeli>{{cite journal | last1 = Buffetaut | first1 = E. | last2 = Psi | first2 = A. | last3 = Prondvai | first3 = E. | year = 2011 | title = The pterosaurian remains from the Grünbach Formation (Campanian, Gosau Group) of Austria: a reappraisal of Ornithocheirus buenzeli | journal = Geological Magazine | volume = 148 | issue = 2| pages = 334–339 | doi = 10.1017/S0016756810000981 | bibcode = 2011GeoM..148..334B | s2cid = 131376979 }}</ref> Description The type species, Ornithocheirus simus, is only known from fragmentary jaw tips. It bore a distinctive convex "keeled" crest on its snout similar to its relatives. Ornithocheirus had relatively narrow jaw tips compared to the related Coloborhynchus and Tropeognathus, which had prominently-expanded