nummulitic limestone

The most important feature is the great development of nummulitic limestone with thin marls and nummulitic sandstones.

Besides being a widespread formation the nummulitic limestone is locally several thousand feet thick.

In the Eocene, however, we shall discover one very instructive case in the great Nummulitic Limestone.

The stones of which some of the Egyptian pyramids are built consist of such nummulitic limestone.

The next geological formation which is represented is the Eocene, consisting of nummulitic limestone, sandstone and schist.