Reference

Gerhard Falkner, Karl Werner Barthel, W. Herrmann- Degen (1981): Late cretaceous and early tertiary stratigraphy in the Great Sand Sea and its SE margins (Farafra and Dakhla Oases), SW desert, Egypt – Mitt. Bayer. Staatssamml. Palaeont. Hist. Geol. – 21: 141 - 182.