Hettangian, Gammal, Saint-Ambroix, France (Jurassic of France)

Where: France (44.3° N, 4.2° E: paleocoordinates 32.5° N, 9.4° E)

• coordinate based on political unit

• local area-level geographic resolution

When: Early/Lower Hettangian (201.3 - 196.5 Ma)

• formation-level stratigraphic resolution

Environment/lithology: lithified, calcareous marl

• About 17 meters of marls and marly limestones

Size class: macrofossils

Preservation: cast, original aragonite, original calcite

Primary reference: P. de Brun and L. Vedel. 1919. Etude géologique et paléontologique des environs de St-Ambroix (Gard). Première partie (Houiller, Trias, Infralias). Imprimerie Générale, Nimes 1-220 [L. Villier/L. Villier/L. Villier]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 39215: authorized by Loic Villier, entered by Loic Villier on 24.05.2004, edited by Wolfgang Kiessling and Austin Hendy

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Polychaeta
 Sabellida - Serpulidae
 Serpulimorpha -
Bivalvia
 Arcida - Arcidae
Arca sp. Linnaeus 1758 ark
 Arcida - Parallelodontidae
 Pectinida - Entoliidae
 Pectinida - Dimyidae
"Dimyopsis emmerichi" = Atreta
"Dimyopsis emmerichi" = Atreta scallop
 Pectinida - Pectinoidae
"Chlamys valoniensis" = Praechlamys valoniensis Defrance 1825 scallop
"Amussium securis" = Amusium scallop
Chlamys cossmanni n. sp. scallop
Chlamys hehli scallop
 Pectinida - Limidae
"Lima hettangiensis" = Pseudolimea hettangiensis Terquem 1855 file clam
Lima vendaeensis file clam
Lima pectinoides file clam
Lima ? eryx file clam
Lima dupla file clam
 Pectinida - Plicatulidae
 Ostreida - Gryphaeidae
Liostrea gammalensis n. sp. oyster
Liostrea sp. Douvillé 1904 oyster
"Liogryphaea dumortieri" = Gryphaea oyster
"Liogryphaea primordialis n. sp." = Gryphaea oyster
Exogyra sp. Say 1820 oyster
 Ostreida - Ostreidae
"Alectryonia rhodani" = Ostrea (Alectryonia), "Alectryonia tinieri" = Ostrea (Alectryonia)
"Alectryonia rhodani" = Ostrea (Alectryonia) oyster
"Alectryonia tinieri" = Ostrea (Alectryonia) oyster
 Ostreida -
 Ostreida - Bakevelliidae
 Ostreida - Pinnidae
 Pterioida - Prospondylidea
 Mytilida - Mytilidae
Perna ? infraliasica, "Modiola lusitanica" = Modiolus, "Modiola stoppanii" = Modiolus, "Modiola dalmasi" = Modiolus, "Modiola simoni" = Modiolus, "Modiola nitidula" = Modiolus, "Modiola producta" = Modiolus, "Modiola hoffmanni" = Modiolus, "Modiola rustica" = Modiolus, "Modiola liasina" = Modiolus, "Modiola mingaudi n. sp." = Modiolus, "Modiola romani n. sp." = Modiolus, "Modiola jolyi" = Modiolus, "Modiola gammalensis n. sp." = Modiolus, "Modiola hillana" = Modiolus (Cyranus) hillanus
"Modiola lusitanica" = Modiolus mussel
"Modiola stoppanii" = Modiolus mussel
"Modiola dalmasi" = Modiolus mussel
"Modiola simoni" = Modiolus mussel
"Modiola nitidula" = Modiolus mussel
"Modiola producta" = Modiolus mussel
"Modiola hoffmanni" = Modiolus mussel
"Modiola rustica" = Modiolus mussel
"Modiola liasina" = Modiolus mussel
"Modiola mingaudi n. sp." = Modiolus mussel
"Modiola romani n. sp." = Modiolus mussel
"Modiola jolyi" = Modiolus mussel
"Modiola gammalensis n. sp." = Modiolus mussel
"Modiola hillana" = Modiolus (Cyranus) hillanus Sowerby 1818 mussel
 Carditida - Astartidae
Opis sp., Astarte chartroni, "Astarte consobrina" = Astarte consobrina, "Astarte ? heberti" = Astarte consobrina, "Astarte repelini n. sp." = Astarte consobrina
Opis sp. Defrance 1824 clam
"Astarte consobrina" = Astarte consobrina Chapuis and Dewalque 1853 clam
"Astarte ? heberti" = Astarte consobrina Chapuis and Dewalque 1853 clam
"Astarte repelini n. sp." = Astarte consobrina Chapuis and Dewalque 1853 clam
 Carditida - Cardiniidae
 Pholadida - Corbulidae
 Pholadida - Pleuromyidae
Pleuromya sp. Agassiz 1845 clam
Pleuromya galathea Agassiz 1842 clam
 Cardiida - Arcticidae
 Cardiida - Trapezidae
? Trapezium sp. Mühlfeld 1811 clam
 Cardiida - Glossidae
"Isocardia sp." = Glossus
"Isocardia sp." = Glossus Poli 1795 clam
 Cardiida - Tancrediidae
 Cardiida - Cardiidae
 Hiatellida - Hiatellidae
"? Saxicava breoni" = Hiatella
"? Saxicava breoni" = Hiatella clam
 Pandorida - Laternulidae
Cercomya sp. Agassiz 1843 clam
[entered as Ceromya sp.]
 Pandorida - Lyonsiidae
 Pholadomyida - Pholadomyidae
 Lucinida - Lucinidae
Gastropoda
 Neogastropoda - Turridae
Bourguetia deshayesea Terquem 1855 turrid
Pseudomelania sp. Pictet and Campiche 1862 turrid
 Stromboidea - Aporrhaidae
"Alaria aff. dubia" = Dicroloma
"Alaria aff. dubia" = Dicroloma snail
 Littorinoidea - Purpurinidae
Tretospira carinata Deshayes 1855 periwinkle
Tretospira angulata Deshayes 1855 periwinkle
 Hypsogastropoda - Coelostylinidae
Coelostylina sp. Kittl 1894 snail
 Allogastropoda - Gordenellidae
 Architectonicoidea - Architectonicidae
 Ptychomphaloidea - Ptychomphalidae
Ptychomphalus aff. jamoignacus, "Pleurotomaria caepa" = Ptychomphalus caepa, "Pleurotomaria rotellaeformis" = Ptychomphalus rotellaeformis
"Pleurotomaria caepa" = Ptychomphalus caepa Deslongchamps 1848 snail
"Pleurotomaria rotellaeformis" = Ptychomphalus rotellaeformis Dunker 1847 snail
 Pleurotomarioidea - Pleurotomariidae
 Turbinoidea - Turbinidae
Turbo ? sp. Linnaeus 1758 snail
 Turbinoidea - Phasianellidae
 Seguenzioidea - Eucyclidae
Eucyclus sp. Eudes-Deslongchamps 1860 snail
 Trochoidea - Trochidae
Cephalopoda
 Ammonitida - Hammatoceratidae
"Chartronia aff. digoniata" = Hammatoceras
"Chartronia aff. digoniata" = Hammatoceras ammonite
 Ammonitida - Psiloceratidae
Psiloceras planorbis Sowerby 1824 ammonite
Psiloceras johnstoni Sowerby 1824 ammonite
 Ammonitida - Schlotheimiidae
Echinoidea
 Cidaroida - Miocidaridae
Miocidaris lorioli pencil urchin
 Pedinoida - Pedinidae
Crinoidea
 Isocrinida - Isocrinidae
Rhynchonellata
 Terebratulida - Zeilleriidae
Zeilleria perforata Piette 1856
 Terebratulida - Terebratulidae
Terebratula sp. Müller 1776
 Rhynchonellida - Wellerellidae
"Rhynchonella plicatissima" = Calcirhynchia plicatissima
"Rhynchonella plicatissima" = Calcirhynchia plicatissima Quenstedt 1852
Anthozoa
 Scleractinia - Actinastreidae
Chondrocoenia reptans3 Duncan 1867 stony coral
 Scleractinia - Montlivaltiidae
Thecosmilia major stony coral
 Scleractinia - Oppelismiliidae
Haimeicyclus haimei2 Chapuis and Dewalque 1853 stony coral
 Scleractinia - Ellipsosmiliidae
Duncanosmilia moorei1 Beauvais 1976 stony coral
Astraeidae
  - Astraeidae
"Montlivaultia sinemuriensis" = Montlivaltia, "Montlivaultia ? dewalquei" = Montlivaltia, "Montlivaultia sp." = Montlivaltia
"Montlivaultia sinemuriensis" = Montlivaltia
"Montlivaultia ? dewalquei" = Montlivaltia
"Montlivaultia sp." = Montlivaltia Lamouroux 1821