Tufs et calcaires de Rosan
Appearance
Tufs et calcaires de Rosan | |
---|---|
Stratigraphic range: Katian-Hirnantian (Kralodvorian-Kosovian) ~ | |
Type | Formation |
Lithology | |
Primary | Tuff, limestone |
Other | Pillow lava, claystone, sandstone |
Location | |
Coordinates | 48°18′N 4°12′W / 48.3°N 4.2°W |
Approximate paleocoordinates | 70°18′S 53°54′E / 70.3°S 53.9°E |
Region | Finistère |
Country | France |
Extent | Armorican Massif |
Type section | |
Named for | Rosan |
The Tufs et calcaires de Rosan is a geologic formation in France. It preserves fossils dating back to the Katian to Hirnantian (Kralodvorian to Kosovian in the regional stratigraphy) stages of the Late Ordovician period.[1]
Fossil content
[edit]The formation has provided fossils of:[1][2]
Strophomenata
[edit]Rhynchonellata
[edit]See also
[edit]References
[edit]- ^ a b Tufs et calcaires de Rosan at Fossilworks.org
- ^ Melou, 1990
Bibliography
[edit]- M. Melou. 1990. Brachiopodes articules de la coupe de l'ile de Rosan (Crozon, Finistere); formation des tufs et calcaires de Rosan (Caradoc-Ashgill). Géobios 23(5):539-579