Ammonoids, Jason zone, Jason sub-zone, Poitou (Jurassic of France)

Where: France (46.3° N, 0.5° W: paleocoordinates 36.5° N, 10.0° E)

• coordinate based on political unit

• basin-level geographic resolution

When: Middle Callovian (164.7 - 161.2 Ma)

• Jazon zone, Jazon sub-zone

• formation-level stratigraphic resolution

Environment/lithology: offshore; lithified limestone

Size class: macrofossils

Primary reference: E. Cariou, S. Elmi, C. Mangold, J. Thierry, and H. Tintant. 1971. La succession des faunes dans le Callovien Francais, essais de corrélation à l'échelle de la zone. Mémoires du B.R.G.M. 75:665-692 [L. Villier/L. Villier]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 60542: authorized by Loic Villier, entered by Loic Villier on 17.05.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

Cephalopoda
 Ammonitida - Oppeliidae
"Sublunuloceras didieri" = Hecticoceras (Sublunuloceras) ammonite
Rossiensiceras sp. Gerard and Contaut 1936 ammonite
 Ammonitida - Strigoceratidae
Phlycticeras ex gr. pustulatum Reinecke 1818 ammonite
 Ammonitida - Perisphinctidae
"Choffatia sp." = Choffatia, "Grossouvria sp." = Choffatia
"Choffatia sp." = Choffatia Siemiradzki 1898 ammonite
"Grossouvria sp." = Choffatia Siemiradzki 1898 ammonite
 Ammonitida - Reineckeiidae
Reineckeia reissi Steinmann 1881 ammonite
Reineckeia grossouvrei Petitclerc 1915 ammonite
Reineckeites aff. stuebeli Steinmann 1881 ammonite
 Ammonitida - Kosmoceratidae
Zugokosmoceras jason Reinecke 1818 ammonite
 Ammonitida - Oecoptychiidae
 Ammonitida - Macrocephalitidae