Jean-Louis Alléon-Dulac was a French

France

The French Republic , The French Republic , The French Republic , (commonly known as France , is a unitary semi-presidential republic in Western Europe with several overseas territories and islands located on other continents and in the Indian, Pacific, and Atlantic oceans. Metropolitan France...

 naturalist

Naturalist

Naturalist may refer to:* Practitioner of natural history* Conservationist* Advocate of naturalism * Naturalist , autobiography-See also:* The American Naturalist, periodical* Naturalism...

.

Jean-Louis Alléon-Dulac was born in Saint-Étienne

Saint-Étienne

Saint-Étienne is a city in eastern central France. It is located in the Massif Central, southwest of Lyon in the Rhône-Alpes region, along the trunk road that connects Toulouse with Lyon...

, Loire

Loire

Loire is an administrative department in the east-central part of France occupying the River Loire's upper reaches.-History:Loire was created in 1793 when after just 3½ years the young Rhône-et-Loire department was split into two. This was a response to counter-Revolutionary activities in Lyon...

, the son of an adviser of the king. He became Lawyer at the Parliament of Lyon between 1748 and 1765, Director of the post office, Warehouse keeper of tobacco and Receiver of the Lottery of Saint-Etienne, but is especially known as a naturalist.He wrote Mélange d'histoire naturelle (1754) and Mémoire pour servir à l'histoire naturelle des provinces de Lyonnais, Forez et Beaujolais, printed by Claude Cizeron at Lyon in 1765.In this last work, he gave a detailed description of the quarries

Quarry

A quarry is a type of open-pit mine from which rock or minerals are extracted. Quarries are generally used for extracting building materials, such as dimension stone, construction aggregate, riprap, sand, and gravel. They are often collocated with concrete and asphalt plants due to the requirement...

 and mines

Mining

Mining is the extraction of valuable minerals or other geological materials from the earth, from an ore body, vein or seam. The term also includes the removal of soil. Materials recovered by mining include base metals, precious metals, iron, uranium, coal, diamonds, limestone, oil shale, rock...

 of these areas an one of the first figures of an ammonite

Ammonite

Ammonite, as a zoological or paleontological term, refers to any member of the Ammonoidea an extinct subclass within the Molluscan class Cephalopoda which are more closely related to living coleoids Ammonite, as a zoological or paleontological term, refers to any member of the Ammonoidea an extinct...

. He was also the first to identify the belemnites as cephalopods. He died at Saint-Etienne.