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 eurygnathus Seeley, 1870 (nomen dubium) Fig. 18E-H "Ptenodactylus" eurygnathus Seeley: Seeley 1869 : p. xvi [disclaimed] Ornithocheirus eurygnathus Seeley: Seeley 1870 : p. 123 Amblydectes eurygnathus (Seeley): Hooley 1914 : p. 536 Criorhynchidae incertae sedis :Wellnhofer 1978 : 60 Coloborhynchus capito (Seeley): Unwin 2001 : table 1 Holotype. CAMSM B54644, anterior fragment of an?upper jaw ( Fig. 18E-H ). Type locality. Ditton, Cambridgeshire, England. Type horizon. Cambridge Greensand (Cenomanian; fossils Albian in age). Description. CAMSM B54644 was tentatively identified by Seeley (1870) as the tip of a dentary. It has very large alveoli and an oval depression between the first pair of alveoli; it also has a median crest beginning at the tip of the jaw. Upon examination, it could be observed that the crest is fairly high, so the fragment could be an upper jaw. However, the presence of neither a palatal ridge nor a dentary sulcus could be recognized in the specimen, so it is not possible to identify it as an upper jaw with certainty. Therefore, we consider the species a nomen dubium .