Taxonomic review of the Ornithocheirus complex (Pterosauria) from the Cretaceous of England Author Rodrigues, Taissa Department of Biology, Agrarian Sciences Center, Universidade Federal do Espirito Santo. Alto Universitario s / n, Caixa Postal 16, Guararema, CEP 29500 - 000, Alegre, ES, Brazil taissa.rodrigues@gmail.com Author Kellner, Alexander Wilhelm Armin Laboratory of Systematics and Taphonomy of Fossil Vertebrates, Department of Geology and Paleontology, Museu Nacional / Universidade Federal do Rio de Janeiro. Quinta da Boa Vista s / n, Sao Cristovao, CEP 20940 - 040, Rio de Janeiro, RJ, Brazil text ZooKeys 2013 2013-06-12 308 1 112 http://dx.doi.org/10.3897/zookeys.308.5559 journal article http://dx.doi.org/10.3897/zookeys.308.5559 1313-2970-308-1 EEC31850AAAB4081B05AB80A2D944658 FFA2FFFEFFE74632FFB7FFC7D553CE26 577662 Ornithocheirus carteri Seeley, 1870 (nomen dubium) Fig. 16E-H Ornithocheirus carteri Seeley: Seeley 1869 : p. xvi [disclaimed] Ornithocheirus carteri Seeley: Seeley 1870 : p. 128 Criorhynchus carteri (Seeley): Hooley 1914 : p. 536 Criorhynchus simus (Owen): Wellnhofer 1978 : p. 60 Ornithocheirus simus (Owen): Unwin 2001 : table 1 Holotype. CAMSM B 54437, anterior portion of the rostrum ( Fig. 16E-H ). Type locality. Cambridge, Cambridgeshire, England. Type horizon. Cambridge Greensand (Cenomanian; fossils Albian in age). Description. Seeley (1870) named this species based on some differences between CAMSM B 54437 and the holotype of Ornithocheirus simus . He noted that the rostrum is not as high and narrower; the lateral surfaces bear several longitudinal furrows, which he believed to be impressions of blood vessels; and the first pair of teeth are larger, more conical, circular, and separated by a large gap. Although the rostrum is not as tall as in Ornithocheirus simus , it is not possible to determine if this size difference is merely ontogenetic. However, the separation between the right and left teeth of the first pair of alveoli is larger than the holotype of Ornithocheirus simus . Therefore, we reject referring Ornithocheirus carteri to Ornithocheirus simus and consider it a nomen dubium .