Reference
Alexander Lukeneder, Mathias Harzhauser, Oleg Mandic, Reinhard Roetzel (1999): Shell-accumulation of the nautilidae Aturia (Aturia) aturi (Basterot, 1825) in the Retz-Formation (Lower Austria, Upper Eggenburgian, Lower Miocene) – Berichte der Geologischen Bundesanstalt – 46: 76.