Vorlage:Villalobos-Segura et al., 2019a

• Villalobos‐Segura, E., Underwood, C.J. & Ward, D.J. 2019. The first skeletal record of the enigmatic Cretaceous sawfish genus Ptychotrygon (Chondrichthyes, Batoidea) from the Turonian of Morocco. Papers in Palaeontology. Online edition. First published: 03 October 2019. (doi)