Causses (Truc de Balduc section) TB 17: Toarcian, France

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Cephalopoda - Ammonitida - Hammatoceratidae
Hammatoceras speciosum Janensch 1902
1 specimen
recombined as Geczyceras speciosum
Hammatoceras cf. praefallax
2 specimens
Hammatoceras cf. insigne (Schubler 1831)
4 specimens
Cephalopoda - Ammonitida - Hildoceratidae
Polyplectus discoides (Zittel 1831)
1 specimen
unclassified
Osperlioceras sp. Krimholz 1957
6 specimens
Osperleioceras
see common names

Geography
Country:France
Coordinates: 44.5° North, 3.5° East (view map)
Paleocoordinates:33.1° North, 14.8° East
Basis of coordinate:estimated from map
Geographic resolution:outcrop
Time
Period:Jurassic Epoch:Early/Lower Jurassic
Stage:Toarcian 10 m.y. bin:Jurassic 3
Key time interval:Toarcian
Age range of interval:184.20000 - 174.70000 m.y. ago
Stratigraphy
Stratigraphic resolution:formation
Lithology and environment
Primary lithology: lithified marl
Lithology description: Argillaceous-marly sediments. Fossils were collected from marls.
Environment:open shallow subtidal
Geology comments: Mid to lower shelf settings. Dark-gray fine-grained sediment point to high rates of sedimentation, high turbidity, intermittently lowered oygen values and soft to soupy substrate conditions.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Spatial resolution:autochthonous
Collection methods and comments
Collection methods:field collection
Reason for describing collection:paleoecologic analysis
Metadata
Database number:210881
Authorizer:W. Kiessling Enterer:M. Krause
Modifier:M. Krause Research group:marine invertebrate
Created:2020-06-21 02:45:27 Last modified:2022-09-07 11:07:22
Access level:the public Released:2020-06-21 02:45:27
Creative Commons license:CC BY
Reference information

Primary reference:
72777. R. Berndt. 1998. Das Makrobenthos der Causses (Südfrankreich): Palökologie einer mittel- bis oberliassischen Mergelfolge. [W. Kiessling/M. Krause]