| François Jouannet - Discoverer | Identifies Pech I in 1816. |
| François Bordes - Archaeologist | Search and definition of MTA and Asinipodian. |
| Maurice Bourgon - Archaeologist | Collaborate with Bordes on Pech I and II. |
| Marie Soressi - Prehistorian | Recent studies on excavation materials. |
| Jean-Pierre Texier - Geologist | Analysis of the geological phases of Pech II. |