Also known as Bourbon-l’Archambault basin

Where: Auvergne-Rhône-Alpes, France (46.6° N, 3.0° E: paleocoordinates 1.0° N, 17.1° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Renière B Member (Renière Formation), Sakmarian (293.5 - 290.1 Ma)

• "the uppermost shale sequence (20 m in thickness) of the Renière B Member (the “Charlerie Member” of mining geologists), Renière Formation, upper section of the “Autunian Group”, Sakmarian, Lower Permian (Cisuralian)" (Steyer et al. 2012)

•"A Sakmarian age is proposed here for Franchesse because this locality is stratigraphically younger than Buxières-les-Mines, where a cinerite (called “Lien vert”) has been dated at 288 ± 4 Ma, i.e. at the Asselian-Sakmarian limit [Kaulfuss, 2003]" (Steyer et al. 2012)

Environment/lithology: lacustrine - large; siltstone

Size class: macrofossils

Primary reference: J.-S. Steyer, S. Sanchez, P. J. Debriette, A. M. F. Valli, F. Escuille, B. Pohl, R.-P. Dechambre, R. Vacant, C. Spence and G. Ploëg. 2012. A new vertebrate Lagerstätte from the Lower Permian of France (Franchesse, Massif Central): palaeoenvironmental implications for the Bourbon-l’Archambault basin. Bulletin de la Société géologique de France 183(6):509-515 [A. Dunhill/B. Allen]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 197925: authorized by Alex Dunhill, entered by Bethany Allen on 30.11.2018

Creative Commons license: CC BY (attribution)