^David S. Berman; Amy C. Henrici; Stuart S. Sumida; Thomas Martens; Valerie Pelletier (2013). "First European record of a varanodontine (Synapsida: Varanopidae): member of a unique Early Permian upland paleoecosystem, Tambach Basin, central Germany". Dalam Christian F. Kammerer; Kenneth D. Angielczyk; Jörg Fröbisch. Early Evolutionary History of the Synapsida. in press. Springer. doi:10.1007/978-94-007-6841-3_5. ISBN978-94-007-6840-6.