Tufs et calcaires de Rosan

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Tufs et calcaires de Rosan
Stratigraphic range: Katian-Hirnantian (Kralodvorian-Kosovian)
~450–443.7  Ma
Geologic map Armorican Massif EN.svg
Geologic map of the Armorican Massif
Type Formation
Lithology
Primary Tuff, limestone
Other Pillow lava, claystone, sandstone
Location
Coordinates 48°18′N4°12′W / 48.3°N 4.2°W / 48.3; -4.2 Coordinates: 48°18′N4°12′W / 48.3°N 4.2°W / 48.3; -4.2
Approximate paleocoordinates 70°18′S53°54′E / 70.3°S 53.9°E / -70.3; 53.9
Region Finistère
CountryFlag of France.svg  France
Extent Armorican Massif
Type section
Named forRosan
France relief location map.jpg
Dark Green 004040 pog.svg
Tufs et calcaires de Rosan (France)
Bretagne region relief location map.jpg
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Tufs et calcaires de Rosan (Brittany)

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]

Contents

Fossil content

The formation has provided fossils of: [1] [2]

Strophomenata

Rhynchonellata

See also

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References

  1. 1 2 Tufs et calcaires de Rosan at Fossilworks.org
  2. Melou, 1990

Bibliography