Aravis horizon, Col de la Blonnière, massif des Aravis, Haute-Savoie (Cretaceous of France)

Where: France (45.9° N, 6.4° E: paleocoordinates 36.0° N, 16.4° E)

• coordinate stated in text

• hand sample-level geographic resolution

When: Bostan Member (Grès verts helvétiques Formation), Early/Lower Aptian (121.4 - 122.5 Ma)

• 50 cm

• bed-level stratigraphic resolution

Environment/lithology: marine; poorly lithified, condensed, phosphatic, intraclastic conglomerate

Size class: macrofossils

Preservation: cast, replaced with phosphate

Primary reference: M. Delamette, J. Charollais, D. Decrouez and M. Caron. 1997. Les grès verts helvétiques (Aptien moyen-Albien supérieur) de Haute-Savoie, Valais et Vaud (Alpes occidentales franco-suisses). Publications du Département de Géologie et Paléontologie. Section des Sciences de la Terre 23:1-400 [L. Villier/L. Villier/M. Uhen]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 58876: authorized by Loic Villier, entered by Loic Villier on 28.02.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Demospongiae
 Clavulina - Clionaidae
Entobia sp.
Entobia sp. Bronn 1838 demosponge
Echinoidea
 Holectypoida - Discoididae
Discoides decorata
Rhynchonellata
 Terebratulida -
Terebratulida indet.
Bivalvia
  -
Bivalvia indet.
Bivalvia indet. Linnaeus 1758 clam
 Arcida - Parallelodontidae
Grammatodon sp.
Grammatodon sp. Meek and Hayden 1860 clam
Cephalopoda
 Belemnitida -
? Mesohibolites semicanaliculatus
 Ammonitida - Acanthohoplitidae
Acanthohoplites sp., "Acanthohoplites ex gr. bigoureti" = Protacanthoplites bigoureti, "Colombiceras ex gr. tobleri" = Colombiceras (Colombiceras) tobleri
Acanthohoplites sp. Sinzow 1908 ammonite
"Acanthohoplites ex gr. bigoureti" = Protacanthoplites bigoureti Seunes 1887 ammonite
"Colombiceras ex gr. tobleri" = Colombiceras (Colombiceras) tobleri Jacob and Tobler 1906 ammonite
 Ammonitida - Parahoplitidae
Parahoplites sp., Parahoplites cf. melchioris, cf. Diadochoceras haugi
Parahoplites sp. Anthula 1899 ammonite
Parahoplites cf. melchioris Anthula 1899 ammonite
 Ammonitida - Tetragonitidae
"Tetragonites duvalianum" = Tetragonites (Tetragonites) duvalianus
"Tetragonites duvalianum" = Tetragonites (Tetragonites) duvalianus d'Orbigny 1841 ammonite
 Ammonitida - Beudanticeratidae
? Zurcherella sp.
? Zurcherella sp. Casey 1954 ammonite
 Ammonitida - Desmoceratidae
Melchiorites sp.
Melchiorites sp. Spath 1923 ammonite
Gastropoda
  -
Gastropoda indet.
Gastropoda indet. Cuvier 1795 snail
 Ichnofossils -
Gastrochaenolites sp.
Gastrochaenolites sp. Leymerie 1842