Grange du Pin farm, Montaigne de Noire (Ordovician of France)

Where: France (43.5° N, 3.3° E: paleocoordinates 69.9° S, 78.0° E)

• coordinate estimated from map

• small collection-level geographic resolution

When: Amorphognathus ordovicicus conodont zone, Gabian Formation, Kralodvorian (449.8 - 445.2 Ma)

• Middle to Upper Caradoc. Also referred to as Caradoc to Ashgill.

• formation-level stratigraphic resolution

Environment/lithology: reef, buildup or bioherm; shelly/skeletal marl and shelly/skeletal limestone

• a clastic formation of graywackes and an overlying calcareous formation
• At its type section the lower part of the formation is characterised by 4.5 m of alternating marlstones with isolated shelly fossils and bioclastic limestone beds up to 10 cm thick. The upper part is made up of laminated massive bioclastic marly limestones rich in bryozoans and cystoids, of which only 2 m crops out below Quaternary beds. The total thickness of the unit was estimated at 10 to 25 m by Dreyfuss (1948).

Size classes: mesofossils, microfossils

Primary reference: A. Ernst and M. Key. 2007. Upper Ordovician bryozoa from the Montagne de Noire, Southern France. Journal of Systematic Palaeontology 5(4):359-428 [W. Kiessling/M. Krause]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 143879: authorized by Wolfgang Kiessling, entered by Mihaela Krause on 26.04.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Stenolaemata
 Cystoporata - Ceramoporidae
Ceramopora italica, Crepipora vesiculosa, Ceramoporella discoidalis, Ceramoporella grandis
  - Phylloporinidae
Chasmatopora hypnoides, Pseudohornera dmitrii
 Trepostomida - Amplexoporidae
Amplexopora dalpiazzi, Amplexopora sp., Amplexopora cf. robusta
 Trepostomida -
Nicholsonella divulgata, Nicholsonella recta
 Trepostomida - Monticuliporidae
Atactoporella irregularis, Atactoporella sp., ? Mesotrypa rotundipora, Prasopora fistuloporoides, Homotrypa miqueli
Atactoporella sp. Ulrich 1883
 Fenestrata - Ralfinidae
Ralfina lusitanica, Ralfinella elegantula
 Cyclostomata - Corynotrypidae
Corynotrypa sp.
Corynotrypa sp. Bassler 1911
 Cyclostomata - Crownoporidae
Kukersella borealis
Kukersella borealis Bassler 1911
 Rhabdomesida - Rhabdomesidae
Nematotrypa punctata
 Cryptostomata - Arthrostylidae
Ulrichostylus radiatus, Nematopora hispida
 Cryptostomata - Hyphasmoporidae
Matsutrypa elegantula, Matsutrypa rogeri
Matsutrypa rogeri Ernst and Key 2007
 Cryptostomata -
Ptilodictyina "sp. indet. 1", Ptilodictyina "sp. indet. 2", Ptilodictyina "sp. indet. 3"
Ptilodictyina "sp. indet. 1" Astrova and Morozova 1956
Ptilodictyina "sp. indet. 2" Astrova and Morozova 1956
Ptilodictyina "sp. indet. 3" Astrova and Morozova 1956
 Cryptostomata - Ptilodictyidae
Ptilodictya feisti, ? Stictoporella sp., Stellatodictya valentinae
? Stictoporella sp. Ulrich 1882
 Cryptostomata - Escharoporidae
Graptodictya sp., Graptodictya meneghinii
Graptodictya sp. Ulrich 1882
Graptodictya meneghinii De Regny 1942
 Cryptostomata - Stictoporellidae
Astrovidictya sparsa, Stictoporellina eremita
 Cryptostomata - Rhinoporidae
Lichenalia nodata
 Cryptostomata - Fenestellidae
Moorephylloporina contii
 Trepostomata -
Halloporina sp. indet.
 Trepostomata - Heterotrypidae
Dekayia minima, Dekayia buttleri, Dekayia sp., Stigmatella sinuosa, Stigmatella massalis, Heterotrypa magnopora
Dekayia sp. Milne-Edwards and Haime 1851
Stigmatella massalis Bassler 1911
 Trepostomata - Batostomellidae
Bythopora dendrina, Bythopora tenuis, Bythopora subgracilis
Bythopora subgracilis Ulrich 1893
 Trepostomata - Halloporidae
? Calloporella ornata, Diplotrypa languedociana, Parvohallopora onealli, Hallopora gracilens, Hallopora elegantula
Diplotrypa languedociana Dreyfuss 1948
 Trepostomata - Dittoporidae
Hemiphragma subtile
 Trepostomata - Trematoporidae
? Batostoma sp., Trematopora sardoa, Trematopora gracile, Trematopora "sp. 1", Trematopora "sp. 2"
? Batostoma sp. Ulrich 1882
 Trepostomata - Aisenvergiidae
Eridotrypa spicata
 Trepostomata - Ralfimartitidae
Dybowskites orbicularis