Retheuil (Lamarck collection) (Eocene of France)

Where: Picardie, France (49.3° N, 3.0° E: paleocoordinates 44.8° N, 0.4° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: NP12 nannofossil zone, Sables de Cuise Formation, Ypresian (56.0 - 47.8 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithology not reported

Size class: macrofossils

Collected by de Thury; reposited in the MNHN

• Repository: Lamarck collection (some Lamarck types are at MNHN Paris, but other parts of his collection are at the Musée d'Histoire Naturelle Genève)

Primary reference: J. B. Lamarck. 1804. Suite des mémoires sur les fossiles des environs de Paris. Annales du Muséum National d'Histoire Naturelle 5:91-98 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 184163: authorized by Matthew Clapham, entered by Matthew Clapham on 04.02.2017

Creative Commons license: CC BY (attribution)

Taxonomic list

Gastropoda
 Neritoidea - Neritidae
Nerita conoidea Lamarck 1804 snail