Layer F, Vallée du Merlaux, Félines-Minervois (Ordovician of France)

Where: Languedoc-Roussillon, France (43.3° N, 2.6° E: paleocoordinates 60.5° S, 101.4° E)

• coordinate based on nearby landmark

When: Euloma filacovi trilobite zone, F Member (Saint-Chinian Formation), Tremadocian (485.4 - 477.7 Ma)

• faunizone “F” = IGCP TS 1c-d

•Was: Schistes de Saint-Chinian, Layer F

• member-level stratigraphic resolution

Environment/lithology: deep subtidal shelf; gray claystone and lithified, bioturbated, nodular siltstone

• a monotonous succession of dark-grey claystones, and green siltstones with fine to mediumgrained sandstone intercalations and silicious nodules reaching a thickness greater than 500 m. Although the sandstone intercalations are often graded and exhibit erosive bases, bioturbation is common and primary sedimentary features are often lacking (Alvaro et al.2003).

Size class: macrofossils

Preservation: cast, original aragonite

Primary reference: E. L. Yochelson. 1982. Mollusques monoplacopheres et gastropodes. In C. Babin, R. Courtessole, M. Melour, J. Pillet, D. Vizcaino & E.L. Yochelson (eds.), Brachiopodes (Articules) et Mollusques (Bivalves, Rostroconches, Monoplacophores, Gastropodes) de L'Ordovicien Inferieur (Tremadocien - Arenigien) de la Montagne Noire (France Meridionale) 51-63 [P. Wagner/P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 167672: authorized by Pete Wagner, entered by Pete Wagner on 27.03.2015

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Nuculida - Praenuculidae
Tergomya
 Cyrtonellida - Carcassonnellidae
"Gamadiscus courtessolei" = Carcassonnella courtessolei
"Gamadiscus courtessolei" = Carcassonnella courtessolei Yochelson 1982