Hirnant Limestone | |
Type: | Formation |
Age: | Hirnantian ~ |
Period: | Hirnantian |
Prilithology: | Limestone |
Country: | England, Wales |
Coordinates: | 52.9°N -3.6°W |
Paleocoordinates: | -38.1°N -16.9°W |
The Hirnant Limestone is an old name for a geologic formation in England and Wales, defining the Hirnantian. It preserves fossils dating back to the Ordovician period.[1] It is now classified as the Hirnant Limestone Member of the Foel Y Ddinas Mudstones Formation.[2]