La Serre D/C boundary section Beds 89-101 (Carboniferous of France)

Also known as La Serre D/C boundary section, Tournaisian part

Where: France (44.0° N, 4.5° E: paleocoordinates 19.2° S, 12.8° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Siphonodella sulcata conodont zone, Griotte Formation, Hastarian (358.9 - 353.8 Ma)

• Approx D/C boundary (praesulcata/sulcata boundary) between beds 88 and 89.

•JA: originally entered as Tournaisian, but latest Famennian to Hastarian based on zonal assignment; see Somerville 2008. PJW: This now is the Griotte 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 38642: authorized by Michael Foote, entered by Michael Foote on 26.04.2004, edited by Pete Wagner

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
unclassified
  -
? Ectochorisites sp.2
Anthozoa
 Favositida - Favositidae
Sutherlandia sp.3
Sutherlandia sp.3 Cocke and Bowsher 1968 tabulate coral
 Stauriida - Cyathaxoniidae
Cyathaxonia (Cyathocarinia) sp.3
Cyathaxonia (Cyathocarinia) sp.3 Michelin 1847 horn coral
 Stauriida - Cyathopsidae
Caninia cf. tregaensis3
 Stauriida - Polycoeliidae
? Sochkineophyllum sp.3
? Sochkineophyllum sp.3 Grabau 1928 horn coral
 Stauriida - Plerophyllidae
"Ufimia "sp. 1"" = Ufimia3, "Ufimia "sp. 2"" = Ufimia3, "Ufimia "sp. 3"" = Ufimia3, "Rhopalolasma sp." = Ufimia3
"Ufimia "sp. 1"" = Ufimia3 Shtukenberg 1895 horn coral
"Ufimia "sp. 2"" = Ufimia3 Shtukenberg 1895 horn coral
"Ufimia "sp. 3"" = Ufimia3 Shtukenberg 1895 horn coral
"Rhopalolasma sp." = Ufimia3 Shtukenberg 1895 horn coral
 Heterocorallia - Heterophylliidae
Heterophyllia sp.3
Heterophyllia sp.3 McCoy 1849
Strophomenata
 Productida - Monticuliferidae
Ovatia sp.2, Ovatia ex gr. laevicosta2
 Productida - Productellidae
"Planoproductus" sp.2
 Productida - Productidae
? Leioproductus aff. kalmiusi2, Spinocarinifera ex gr. nigra2, Semiproductus sp.2
Rhynchonellata
 Spiriferinida - Syringothyrididae
Syringothyris sp.2
 Spiriferida - Strophopleuridae
Voiseyella pseudopostera2
 Spiriferida - Spiriferidae
Unispirifer sp.2
 Spiriferida - Brachythyrididae
Brachythyris sp.2
Brachythyris sp.2 M'Coy 1844
 Rhynchonellida - Rhynchoporidae
Rhynchopora sp.2
Rhynchopora sp.2 King 1865
 Rhynchonellida - Trigonirhynchiidae
? Ripidiorhynchus sp.2, Hemiplethorhynchus sp.2
Hemiplethorhynchus sp.2 von Peetz 1898
Trilobita
 Proetida - Proetidae
Pudoproetus mediterraneus n. sp.1
Pudoproetus mediterraneus n. sp.1 Feist and Petersen 1995 trilobite
Pudoproetus n. sp. mediterraneus
 Proetida - Phillipsiidae
Belgibole abruptirhachis, "Semiproetus (Macrobole) funirepa" = Eowinterbergia funirepa, Semiproetus crispus, Semiproetus (Macrobole) drewerensis, "Liobolina crestaverdensis" = Guilinaspis crestaverdensis
Belgibole abruptirhachis Richter and Richter 1919 trilobite
"Semiproetus (Macrobole) funirepa" = Eowinterbergia funirepa Flajs and Feist 1988 trilobite
Semiproetus crispus trilobite
PJW: I can find no record of this species anywhere!
Semiproetus (Macrobole) drewerensis Richter and Richter 1951 trilobite
"Liobolina crestaverdensis" = Guilinaspis crestaverdensis Feist 1992 trilobite
 Proetida - Brachymetopidae
Brachymetopus germanicus
Brachymetopus germanicus Hahn 1964 trilobite
 Phacopida - Phacopidae
Phacops (Omegops) sp.
Phacops (Omegops) sp. Struve 1976 trilobite
1Feist and Petersen 1995; 2Legrand-Blain and Chacon 1988; 3Semenoff-Tian-Chansky 1988