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 xyphorhynchus Seeley, 1870 (nomen dubium) Fig. 19J-K Ornithocheirus xyphorhynchus Seeley: Seeley 1870 : p. 117 Ornithocheirus xyphorhynchus Seeley: Seeley 1881 : p. 18, plate I, fig. 2 Ornithocheirus xyphorhynchus Seeley: Hooley 1914 : p. 538 Ornithocheirus xyphorhynchus Seeley: Arthaber 1922 : p. 17 Anhanguera cuvieri (Bowerbank): Unwin 2001 : table 1 Holotype. anterior portion of the rostrum (collection data could not be recovered) ( Fig. 19J-K ). Type locality. Cambridge, Cambridgeshire, England. Type horizon. Cambridge Greensand (Cenomanian; fossils Albian in age). Description. The holotype of Ornithocheirus xyphorhynchus was illustrated by Seeley (1881 : plate I, Figs 2a and 2b ), and, as the type material of 'Ornithocheirus' reedi , belonged to the collection of W. Reed of York at the time when it was first described. It could not be found in the collections of the Natural History Museum, the Sedgwick Museum of Earth Sciences, or the Manchester Museum during visits in October 2009. Therefore, we base our remarks on the descriptions and illustrations provided by Seeley (1870 , 1881 ). The species was based on a fragmentary mandible, lacking the tip. It did not have a dentary crest ( Seeley 1870 ). Unwin (2001) recently referred it to Anhanguera [= Cimoliopterus ] cuvieri . However, the latter is known by a cranial material from the Chalk Formation, whereas Ornithocheirus xyphorhynchus is known only by a partial lower jaw from the Cambridge Greensand. As both species are known by material which is not directly comparable, the proposed synonymy can be rejected.