Level D, Couches de Barroubio ( of France)

Where: Montagne Noire, France (43.0° N, 3.0° E: paleocoordinates 60.4° S, 101.9° E)

• coordinate estimated from map

• local area-level geographic resolution

When: Shumardia (Conophrys) pusilla trilobite zone, Level D Member (Couches de Barroubio Formation), Tremadoc (486.5 - 477.7 Ma)

• Listed as Upper Tremadoc. Shumardia zone

• member-level stratigraphic resolution

Environment/lithology: deep subtidal shelf; lithified sandstone and lithified, concretionary limestone

• Level is approx. 75 m thick
• Shaly sandstone with nodular limestone

Size classes: macrofossils, mesofossils

Primary reference: C. Babin, R. Courtessole, M. Melou, J. Pillet, D. Vizcaino and E. L. Yochelson. 1982. Brachiopodes (Articulés) et mollusques (bivalves, rostroconches, monoplacophores, gastéropodes) de l’Ordovicien inférieur (Trémadocien-Arenigien) de la Montagne Noire (France méridionale) 1-63 [A. Miller/P. Novack-Gottshall/P. Wagner]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 76572: authorized by Phil Novack-Gottshall, entered by Paul Hearn on 23.11.2007

Creative Commons license: CC BY (attribution)

Taxonomic list

Graptolithina
  -
Graptolithina indet. graptolite
"Rare"
Lingulata
 Lingulida - Obolidae
Lingulella sp. Salter 1866
Articulata
  -
Inarticulata
  -
Kutorginata
 Kutorginida - Yorkiidae
Yorkia sp. Walcott 1897
Rhynchonellata
 Orthida - Plectorthidae
Plectorthis sp. Hall and Clarke 1892
Gastropoda
 Bellerophontida -
Bellerophontoidea indet. M'Coy 1851 snail
 Bellerophontida - Tropidodiscidae
Eobucania sp. Kobayashi 1955 snail
Artiopoda
 Agnostida - Metagnostidae
Anglagnostus sp. Howell 1935
Geragnostus sp. Howell 1935
Geragnostella sp. Kobayashi 1939
Trilobita
 Olenida - Eulomidae
Euloma (Euloma) sp. Angelin 1854 trilobite
 Phacopida - Cheiruridae
Cyrtometopus sp. Angelin 1854 trilobite
 Asaphida - Nileidae
Symphysurus sp. Goldfuss 1843 trilobite
 Ptychopariida - Shumardiidae
"Shumardia pusilla" = Conophrys pusilla
"Shumardia pusilla" = Conophrys pusilla Sars 1835 trilobite
 Lichida - Lichakephalidae
Lichakephalus sp. Sdzuy 1955 trilobite