Grès armoricain Formation
Geology
Members: unnamed (8), Superieur (3)
Lithologies: "siliciclastic" (2), "shale" (4), sandstone (4), packstone (1), rudstone (3), "limestone" (1)
Paleoenvironments: reef, buildup or bioherm (5), shoreface (2), transition zone/lower shoreface (4)
Collections
Time interval | Ma | Country or state | Original ID and collection number |
---|---|---|---|
Arenig | France (Ille-et-Vilaine) | (20852 20860) | |
Arenig | France (Loire-Atlantique) | (20861) | |
Arenig | France (Loire-Atlantique, Ille-et-Vilaine, and Manche) | (20864) | |
Floian | France | (174542 174543) | |
Bathonian | France | (38737 38738 38739 38740 38741) |