MolluscaBase name details
basis of record
Skelton, P. W.; Masse, J.-P. (1998). Revision of the Lower Cretaceous rudist genera Pachytraga Paquier and Retha Cox (Bivalvia: Hippuritacea), and the origins of the Caprinidae. <em>Geobios.</em> 31: 331-370., available online at https://doi.org/10.1016/s0016-6995(98)80086-7 [details]