HOVESTADT, D.C. & HOVESTADT-EULER, M. (1995)
Additions to the fauna of the Boom Clay Formation of Belgium (Rupelian, Oligocene). Taxonomic adjustments on the Scyliorhinidae and Rajoidei, discovery of a dasyatid species (Pisces, Chondrichthyes) and of a curculionid species (Insecta, Coleoptera). Belgian Geological Survey, Professional Paper: Elasmobranches et Stratigraphie, 278: 261–282, pl. 1–11.
REINECKE, T. & MOTHS, H. & GRANT, A. & BREITKREUZ, H. (2005)
Die Elasmobranchier des norddeutschen Chattiums, insbesondere des Sternberger Gesteins (Eochattium, Oligozän). Palaeontos, 8: 1–135, 15 fig., 3 tabl., pl. 1–60