Summesberger H., Kennedy W.J., Skoumal P. (2017) Early and middle Santonian Cephalopods from the Gosau Group (Upper Cretaceous, Austria) 1. Nautiloidea and non-heteromorph Ammonoidea // Abhandlungen der Geologischen Bundesanstalt in Wien. Bd.71. P.5-99.
http://www.zobodat.at/pdf/AbhGeolBA_71_0005-0099.pdf
Summesberger H., Kennedy W.J., Skoumal P. (2017) Early and middle Santonian Cephalopods from the Gosau Group (Upper Cretaceous, Austria) 2. Heteromorph Ammonoidea // Abhandlungen der Geologischen Bundesanstalt in Wien. Bd. 71. P. 101-149.
http://www.zobodat.at/pdf/AbhGeolBA_71_0101-0149.pdf