Grignon (Duchatel collection) (Eocene of France)

Where: France (48.8° N, 1.9° E: paleocoordinates 45.7° N, 1.6° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: NP15 nannofossil zone, Lutetian (47.8 - 41.3 Ma)

• The sediments from the "Falunière de Grignon" are correlated of the Middle Lutetian, according to the identification of biozone NP15 (Aubry 1985). They belong to the regional Zone III and the base of Zone IV of Abrard (1925) and correspond to parasequences A6-A10 of Gely (1996).

• group of beds-level stratigraphic resolution

Environment/lithology: open shallow subtidal; unlithified, calcareous sandstone and unlithified, glauconitic sandstone

Size class: macrofossils

Preservation: original aragonite

Collection methods: Repository: personal collection of M. Duchatel, Versailles (current location unknown)

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 184821: authorized by Matthew Clapham, entered by Matthew Clapham on 25.03.2017

Creative Commons license: CC BY (attribution)

Taxonomic list

Gastropoda
 Fissurelloidea - Fissurellidae
Emarginula clypeata Lamarck 1802 snail
Cyclostoma
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