- Goldschneck-Verlag, Korb. (In German) Lange, W. 1973, "Ammoniten und
Ostreen (Biostratigraphie, Ökologie, Zoogeographie) des
Calloviums - Oxfordium...
- sandstone. The
layers of
Dogger gamma (Sowerbyi layers) (1 m),
Dogger delta (
Ostreen-lime) (4 m), and
Dogger epsilon (Oolith-lime) (2 m) are
summarised under...