La Serre D/C boundary section, Famennian part (Devonian of France)

Where: France (44.0° N, 4.5° E: paleocoordinates 21.8° S, 14.9° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Siphonodella praesulcata conodont zone, Griottes Formation, Late/Upper Famennian (364.7 - 360.7 Ma)

• latest Famennian. Approx D/C boundary (praesulcata/sulcata boundary) between beds 88 and 89. PJW: This is now the Griottes Formation.

• group of beds-level stratigraphic resolution

Environment/lithology: marine; limestone and shale

• Interpreted as shallow neritic facies.
• Famennian part of sequence at La Serre includes nodular limestone, oolite, calcilutite, shale. Tournaisian part consists of the same lithologies, as well as radiolarian chert (with phosphatic nodules) and marl with limestone nodules. Carbonate lithologies greatly predominate, but there are some fossils (esp. brachiopods) in the middle unit that is partly siliciclastic.

Size class: macrofossils

Primary reference: C. Brauckmann, I. Chlupac, and R. Feist. 1993. Trilobites at the Devonian-Carboniferous boundary. Annales de la Societe geologique de Belgique 115(2):507-518 [M. Foote/M. Foote/P. Wagner]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 38641: authorized by Michael Foote, entered by Michael Foote on 26.04.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Strophomenata
 Productida -
"Productacea indet." = Productoidea1
"Productacea indet." = Productoidea1 Gray 1840
 Productida - Productellidae
? Orbinaria fallax1, ? Orbinaria cf. praefallax1
Rhynchonellata
 Spiriferida -
Spiriferida indet.1
Spiriferida indet.1 Waagen 1883
"Spirifer" cf. pseudosuavis or Tenisia sp.
 Spiriferida - Spiriferidae
Unispirifer sp.1
 Spiriferida - Strophopleuridae
Voiseyella pseudopostera1, Voiseyella aff. tylothyriformis1
 Spiriferinida - Syringothyrididae
Syringothyris sp.1
 Rhynchonellida -
Rhynchonellida indet.1
 Rhynchonellida - Rhynchoporidae
Rhynchopora sp.1
Rhynchopora sp.1 King 1865
 Rhynchonellida - Stenoscismatidae
Sedenticellula sp.1
Sedenticellula sp.1 Cooper 1942
Trilobita
 Proetida - Phillipsiidae
? Pseudowaribole sp., Pseudowaribole (Pseudowaribole) cf. octofera, "Pseudowaribole (Pseudowaribole) cf. conifera" = Pseudowaribole (Pseudowaribole) conifer, Helioproetus subcarintiacus
? Pseudowaribole sp. Hahn and Hahn 1967 trilobite
Pseudowaribole (Pseudowaribole) cf. octofera Richter and Richter 1926 trilobite
"Pseudowaribole (Pseudowaribole) cf. conifera" = Pseudowaribole (Pseudowaribole) conifer Richter and Richter 1926 trilobite
Helioproetus subcarintiacus Richter 1913 trilobite
 Phacopida - Phacopidae
"Phacops" wedekindi, "Phacops" granulatus, Phacops (Omegops) sp.
"Phacops" granulatus Münster 1840 trilobite
Phacops (Omegops) sp. Struve 1976 trilobite
Anthozoa
 Stauriida - Laccophyllidae
Guerichiphyllum sp.2, Gorizdronia cf. profunda2, Neaxon cf. regulus2
Guerichiphyllum sp.2 Rozkowska 1969 horn coral
Neaxon cf. regulus2 horn coral
 Stauriida - Metriophyllidae
Metrioplexus sp.2
Metrioplexus sp.2 Glinski 1963 horn coral
1Legrand-Blain and Chacon 1988; 2Semenoff-Tian-Chansky 1988