Bartzsch et al. 2003, p.9: Pfaffenberg-Member, "venusta-Schiefer", oberste Kalkknotenschiefer,
oberste Kalkknollenschiefer der Gleitsch-Fa. innerhalb der Saalfeld-Gruppe, Bank 4 (Bartzsch & Weyer,
1982, fig.2/2). Banked limestone.
Uppermost beds of Siphonodella sulcata Z. and basal layers of Siphonodella duplicata Z., below inaequalis Z.