Salvador, R.B., V.J. Sach & B.L. Valentas-Romera. 2015. The fossil continental mollusks in the Upper Freshwater Molasse (Middle Miocene) of the districts of Biberach, Ravensburg and Neu-Ulm, Germany. Revista Brasileira de Paleontologia 18(2): 201-16. https://doi.org/10.4072/rbp.2015.2.02.