ammonites
L'Asnerie section, bed 29-3b, Armorican Massif (Devonian of France)

Where: Mayenne, France (48.1° N, 0.8° W: paleocoordinates 47.8° S, 38.9° E)

• coordinate based on political unit

• small collection-level geographic resolution

When: Saint-Cenere Formation, Pragian (412.3 - 409.1 Ma)

• bed-level stratigraphic resolution

Environment/lithology: marine; shale

• only lithologic information in the paper describes the sections as interbedded shales and bioclastic limestones; information entered below based on judgement from strat column illustrations

Collection methods: collection taken from shale at the middle of 29-3

Primary reference: P. Morzadec, F. Paris, Y. Plusquellec, P.-R. Rachebouef, and M. Weyant. 1991. La limite Lochkovien-Praguien (Devonien inferieur) dans le Massif armoricain: especes index et correlations. Comptes Rendus de l''Academie des Sciences, Serie II 313:901-908 [A. Miller/K. Layou] more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 6089: authorized by Arnold Miller, entered by Karen Layou on 26.01.2000