^Buffetaut, E. and Jeffrey, P. (2012). "A ctenochasmatid pterosaur from the Stonesfield Slate (Bathonian, Middle Jurassic) of Oxfordshire, England." Geological Magazine, (advance online publication) doi:10.1017/S0016756811001154
^Andres, B.; Clark, J.; Xu, X. The Earliest Pterodactyloid and the Origin of the Group. Current Biology. 2014. doi:10.1016/j.cub.2014.03.030.
^ 3.03.1Unwin, D. M., (2003). "On the phylogeny and evolutionary history of pterosaurs." Pp. 139-190. in Buffetaut, E. & Mazin, J.-M., (eds.) (2003). Evolution and Palaeobiology of Pterosaurs. Geological Society of London, Special Publications 217, London, 1-347.
^Fabien Knoll. Pterosaurs from the Lower Cretaceous (?Berriasian) of Anoual, Morocco. Annales de Paléontologie. 2000, 86 (3): 157–164. doi:10.1016/S0753-3969(00)80006-3.