Ornithocheirus eurygnathus Seeley, 1870

Rodrigues, Taissa & Kellner, Alexander Wilhelm Armin, 2013, Taxonomic review of the Ornithocheirus complex (Pterosauria) from the Cretaceous of England, ZooKeys 308, pp. 1-112 : 46

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.

Figures

Figure 18. A-D Ornithocheirus enchorhynchus, holotype CAMSM B 54444 (Albian, Cambridge Greensand), anterior part of the rostrum. A right lateral view B respective line drawing C ventral view D respective line drawing. E-H Ornithocheirus eurygnathus, holotype CAMSM B 54644 (Albian, Cambridge Greensand), anterior part of the rostrum E? right lateral view F respective line drawing G? ventral view H respective line drawing. Abbreviations: m - maxillae, pm - premaxillae. Arrows and numbers indicate alveoli or teeth and their respective position. Scale bar = 10 mm.