Ornithocheirus buenzeli explained

"Ornithocheirus" buenzeli (often mis-spelled O. bunzeli^[1]) is a pterosaur species known from parts of a humerus (upper arm bone) and part of a lower jaw found in late Cretaceous period (Campanian stage) rocks of the Grünbach Formation, Austria. While it has traditionally been classified in the genus Ornithocheirus, it is more likely an azhdarchid, though due to the fragmentary nature of known fossil remains, it is considered a nomen dubium.^{[2] [3]}

Notes and References

1. Averianov, A.O. (2010). "The osteology of Azhdarcho lancicollis Nessov, 1984 (Pterosauria, Azhdarchidae) from the Late Cretaceous of Uzbekistan." Proceedings of the Zoological Institute of the Russian Academy of Sciences, 314(3): 246-317.
2. Seeley, H. G.. Harry Seeley. 1881. The Reptile Fauna of the Gosau Formation preserved in the Geological Museum of the University of Vienna. Quarterly Journal of the Geological Society. 37. 1. 620–706. 10.1144/GSL.JGS.1881.037.01-04.49. 219235284 .
3. Buffetaut, E., Psi, A., and Prondvai, E. (2011). "The pterosaurian remains from the Grünbach Formation (Campanian, Gosau Group) of Austria: a reappraisal of ‘Ornithocheirus buenzeli’." Geological Magazine, 148(2): 334-339.