“The nummulite limestone was undoubtedly oceanic, and the other shells contained in it are marine species.”

“The Eocene includes a series of sandstones and marls with lignite, and these are overlaid by nummulite limestones.”

“In the seas, the calcareous nannofossils were still in evidence but in shallow waters the benthonic nummulite and other larger foraminifera became very abundant.”