Coast), and rocks of the same period occur in Nossi-be, at Mahajamba Bay, and at Diego-Suarez, with Nummulites and other foraminifers.
It is overlaid towards the west by similar limestones, which contain nummulites and belong to the Eocene period; and these are followed near the coast by the calcareous sandstone of Philistia, which is referred by Hull to the Upper Eocene.
Eocene beds, indeed, penetrate farther within the chain, but these are limestones with nummulites or lignite-bearing shales and have nothing in common with the Flysch.
NUMMULITES NUMMULITE, A.
Certain species of nummulites, which are very common, distinguish the various subdivisions of the Eocene.