↑(en) X. Wang, A.W.A. Kellner, S. Jiang et X. Meng, « An unusual long-tailed pterosaur with elongated neck from western Liaoning of China », Annals of the Brazilian Academy of Sciences, vol. 81, no 4, , p. 793–812 (PMID19893903, DOI10.1590/s0001-37652009000400016)
↑(en) David M. Martill et Steve Etches, « A new monofenestratan pterosaur from the Kimmeridge Clay Formation (Upper Jurassic, Kimmeridgian) of Dorset, England », Acta Palaeontologica Polonica, vol. 58, no 2, , p. 285–294 (DOI10.4202/app.2011.0071)
↑(en) Witton, Mark & O'Sullivan, Michael & Martill, David. (2015). The relationships of Cuspicephalus scarfi Martill and Etches, 2013 and Normannognathus wellnhoferi Buffetaut et al., 1998 to other monofenestratan pterosaurs. Contributions to Zoology. 82. 115-127. 10.1163/18759866-08402002