Where: Landes, France (43.7° N, 1.1° W: paleocoordinates 33.9° N, 1.4° E)

• coordinate estimated from map

• small collection-level geographic resolution

When: Nostoceras hyatti ammonoid zone, Late/Upper Campanian (83.5 - 70.6 Ma)

• D'Avenac Unit. Oldest ammonites from the base of the d'Avenac unit include Hoplitoplacenticeras dolbergense and small heteromorphs of the genus Pseudoxybeloceras, indicating a Late Campanian age for the unit. The base of the Maastrichtian is at 115.2 m in the overlying Les Vignes unit.

• bed-level stratigraphic resolution

Environment/lithology: offshore shelf; lithified, glauconitic limestone

Size class: macrofossils

Primary reference: G. S. Odin. 2001. The Campanian-Maastrichtian stage boundary. Development in Palaeontology and Stratigraphy 19:1-881 [L. Villier/L. Villier/M. Clapham]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 213865: authorized by Matthew Clapham, entered by Matthew Clapham on 12.09.2020

Creative Commons license: CC BY (attribution)