Where: France (49.1° N, 2.2° E: paleocoordinates 47.0° N, 1.8° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Bartonian (41.3 - 38.0 Ma)

• "Gr. Mar. sup?" in Deshayes. Auversien (from later publications).

• formation-level stratigraphic resolution

Environment/lithology: lithology not reported

Size class: macrofossils

Collection methods: Repository: personal collection of Deshayes (specimens apparently now lost)

Primary reference: G. P. Deshayes. 1824. Description des Coquilles Fossiles des Environs de Paris, Tome Second: Mollusques 1-80 [M. Clapham/M. Clapham/M. Uhen]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 184818: authorized by Matthew Clapham, entered by Matthew Clapham on 25.03.2017

Creative Commons license: CC BY (attribution)