PRELIMINARY REMARKS
To date, the following eryonid species have been reported from the Solnhofen Lithographic Limestones: Cycleryon propinquus ( Schlotheim, 1822), Cycleryon orbiculatus ( Münster, 1839), Cycleryon elongatus ( Münster, 1839), Cycleryon wulfi Garassino & Schweigert, 2004, Eryon cuvieri Desmarest, 1817, Knebelia bilobata ( Münster, 1839), Knebelia schuberti (Meyer, 1836), and Knebelia totoroi Audo, Schweigert, Haug, Haug, Saint Martin & Charbonnier, 2014 ( Audo et al. 2014b). Audo et al. (2014a) mentioned additional species including Soleryon schorri from Wattendorf and Soleryon sp. from Zandt.