Poncieux (Unit 18) (Jurassic of France)

Where: France (46.0° N, 5.4° E: paleocoordinates 36.1° N, 15.4° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Retrocostatum ammonoid zone, Late/Upper Bathonian (167.7 - 164.7 Ma)

• Retrocostatum zone, Blanazense subzone

• group of beds-level stratigraphic resolution

Environment/lithology: lithified, concretionary, argillaceous limestone

• alternating thin beds of clayey resistant limestone with calcitic concretions

•and more clay-rich layers containing sea urchins

Size class: macrofossils

Collection methods: Repository: Département des Sciences de la Terre de la Faculté des Sciences

Primary reference: Y. Alméras. 1970. Les terebratulidae du Dogger dans le Mâconnais, le mont d'Or lyonnais et le Jura méridional: Étude systématique et biostratigraphique. Rapports avec la paléoécologie. Documents des Laboratories de Géologie de la Faculté des Sciences de Lyon 39(2):1-690 [M. Clapham/M. Manojlovic/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 170155: authorized by Matthew Clapham, entered by Marko Manojlovic on 15.06.2015

Creative Commons license: CC BY (attribution)

Taxonomic list

• Sea urchins also present
Rhynchonellata
 Rhynchonellida - Acanthothirididae
Acanthothiris spinosa Linnaeus 1767