Connecting the environment of the ancient past with the natural and cultural history of yesterday and today.



Featured Fossil


This page features a fossil with details about the specimen, its age,

where it was found, and a nugget of interesting information. Not every

specimen will be perfectly preserved - but all are a marvel of the natural world!

All geological time periods are represented.


Nummulites laevigatus - a discoidal foaminiferan

Fossil Type:



Nummulites laevigatus Brugiere


Lower Lutecian


Middle Eocene epoch


Cergy – Val d’Oise, France


Most formanifera are microscopic, but not Nummulites! The name is derived from its coin-like shape (nummulus). Ancient Egyptians used them as coins. Forams are essentially armored amoebae. The Great Pyramids in Egypt are made of Eocene limestone rich in this fossil. But they are widespread around the Mediterranean. Click here for another view. Anonymous collection. Specimen ~1 cm wide.

Date Posted:

August 17, 2017

Featured Fossil updates will return on August 25.

Archived Featured Fossils

Archived images are now arranged in each category by geological time period.

How to Submit a Featured Fossil

Created April 12, 2012