Etrechy 66336, Gisement d'Etrechy, Falun d'Auvers-Saint-Georges, Essonne, France (Oligocene of France)

Where: Essonne, France (47.4° N, 4.5° E: paleocoordinates 46.7° N, 1.0° E)

• coordinate based on political unit

• small collection-level geographic resolution

When: Falun d'Auvers-Saint-Georges Formation, Early/Lower Oligocene (33.9 - 28.4 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; poorly lithified, argillaceous, calcareous sandstone

• sables argilo-calcaire blanchatre avec endurcissements calcaires mele de sable argileux verdatre, assex fossilifere; white argillaceous, calcareous sand with calcareous nodules? of green argillaceous sand

Primary reference: J. L. Gitton, P. Lozouet, and P. Maestrati. 1986. Biostratigraphie et paleoecologie des gisements types du Stampian de la region d''Etampes (Essonne). Geologie de la France 1:3-101 [A. Miller/K. Layou/M. Uhen]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 9077: authorized by Arnold Miller, entered by Donna Carlson on 22.09.2000, edited by Austin Hendy

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Gastropoda
 Trochoidea - Skeneidae
 Trochoidea - Trochidae
Jujubinus sp. Monterosato 1884 top snail
Jujubinus subcarinatus Lamarck 1804 top snail
 Neotaenioglossa - Calyptraeidae
Calyptraea striatella slipper shell
 Cerithioidea - Cerithiidae
Bittium sublima cerith snail
 Cerithioidea - Litiopidae
 Cerithioidea - Brachytrematidae
 Cerithioidea - Potamididae
 Cerithioidea - Batillariidae
"Pirenella plicata" = Granulolabium plicatum
"Pirenella plicata" = Granulolabium plicatum Bruguiére 1792 snail
 Cerithioidea - Scaliolidae
 Cerithioidea - Thiaridae
Bayania semidecussata Lamarck 1804 snail
 Architaenioglossa - Ampullinidae
Ampullinopsis crassatina Lamarck 1804 snail
 Sorbeoconcha - Campanilidae
Thericium (Chondrocerithium) intradentatum snail
Thericium (Chondrocerithium) intradentatum
 Sorbeoconcha - Aporrhaidae
Aporrhais speciosa Schlotheim 1820 snail
 Neogastropoda - Buccinidae
Cantharus (Pollia) herberti true whelk
Cantharus (Pollia) heberti
 Neogastropoda - Costellariidae
Vexillum (Conomitra) inornatum ribbed mitre
Vexillum (Conomitra) inornatum
 Neogastropoda - Volutidae
Athleta (Neoathleta) rathieri volute
Athleta (Neoathleta) rathieri
 Sorbeoconcha - Naticidae
Polinices sp., "Polinices (Lunatia) achatensis" = Lunatia
Polinices sp. Monfort 1810 moon snail
"Polinices (Lunatia) achatensis" = Lunatia moon snail
Polinices (Lunatia) achatensis
 Sorbeoconcha - Rissoidae
"Rissoa turbinata" = Turboella turbinata, "Alvania (Taramellia) duboisi" = Galeodinopsis semperi
"Rissoa turbinata" = Turboella turbinata Lamarck 1804 snail
"Alvania (Taramellia) duboisi" = Galeodinopsis semperi Wiechmann 1871 snail
Alvania (Taramellia) duboisi
 Sorbeoconcha - Elachisinidae
Cirsope sp. Cossmann 1888 snail
 Sorbeoconcha - Hydrobiidae
Hydrobia sp. Hartmann 1821 snail
Pseudamnicola helicella Sandberger 1859 snail
 Heterostropha - Pyramidellidae
Syrnola sp. Adams 1860 snail
Odostomia sp. Fleming 1817 snail
 Opisthobranchia - Cylichnidae
Cylichna laurenti snail
=conoidea Desh.
 Opisthobranchia - Scaphandridae
"Atys (Aliculastrum) turgidulus" = Mnestia turgidula
"Atys (Aliculastrum) turgidulus" = Mnestia turgidula Sandberger 1859 snail
Atys (Aliculastrum) turgidulus
 Opisthobranchia - Retusidae
Retusa (Cylichnina) minuta snail
Retusa (Cylichnina) minuta (=minima Sandb.)
 Neritoidea - Neritidae
"Neritina (Vitta) duchasteli" = Vitta
"Neritina (Vitta) duchasteli" = Vitta snail
Neritina (Vitta) duchasteli
Bivalvia
 Arcida - Glycymerididae
Glycymeris sp. Da Costa 1778 clam
 Ostreida - Pteriidae
Pteria stampinensis pearl oyster
 Ostreida - Ostreidae
"Ostrea cyathula" = Crassostrea cyathula
"Ostrea cyathula" = Crassostrea cyathula Lamarck 1806 oyster
 Lucinida - Lucinidae
Paralucinella undulata Lamarck 1806 clam
Pegophysema omaliusi Deshayes 1858 clam
"Lucina" sp. Bruguière 1797 clam
"Claibornites thierensi" = Callucina (Callucina) thierensi Hébert 1849 clam
 Pholadida - Corbulidae
"Lentidium nitidum" = Lentidium (Ajanssenium) nitidum Sowerby 1822 clam
"Corbula" sp. Bruguière 1789 clam
Corbula (Varicorbula) gibba Oliva 1792 clam
Corbula (Varicorbula) gibba subpisum
 Cardiida - Corbiculidae
"Villorita neglecta" = Cyrenorita neglecta
"Villorita neglecta" = Cyrenorita neglecta Nsyt 1836 clam
 Cardiida - Veneridae
Callista splendida Mérian 1860 venus clam
Pelecyora (Cordiopsis) incrassata Nyst 1836 venus clam
Pelecyora (Cordiopsis) incrassata
Tivelina depressa venus clam
 Cardiida - Cardiidae
Parvicardium sp. Monterosato 1884 cockle
 Cardiida - Tellinidae
Tellina (Moerella) raulini tellin clam
Tellina (Moerella) raulini
 Nuculida - Nuculidae
Nucula greppini Deshayes 1858 nut clam