Definition of nummulitic limestone
: the most widely distributed and distinctive formation of the Eocene in Europe, Asia, and northern Africa.
What is nummulitic limestone?
A thick bed of limestone, of Eocene age, composed mainly of the remains of the foraminifer Nummulites. The formation stretches from the Alps through Iran to China. It is the stone of which the Great Pyramid is built.
What is the meaning of nummulite?
A nummulite is a large lenticular fossil, characterized by its numerous coils, subdivided by septa into chambers. They are the shells of the fossil and present-day marine protozoan Nummulites, a type of foraminiferan.
