DELSATE, D. & THIES, D. (1995)
Teeth of the fossil shark Annea THIES 1983 (Elasmobranchii, Neoselachii) from the Toarcian of Belgium. Belgian Geological Survey, Professional Paper: Elasmobranches et Stratigraphie, 278: 45–64, 1 fig., pl. 1–8.