Earth:Hirnant Limestone
From HandWiki
| Hirnant Limestone Stratigraphic range: Hirnantian ~446–444 Ma | |
|---|---|
| Type | Formation |
| Lithology | |
| Primary | Limestone |
| Location | |
| Coordinates | [ ⚑ ] : 52°54′N 3°36′W / 52.9°N 3.6°W |
| Paleocoordinates | [ ⚑ ] 38°06′S 16°54′W / 38.1°S 16.9°W |
| Country | England , Wales |
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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]
See also
- List of fossiliferous stratigraphic units in Wales
References
Further reading
- J. T. Temple. 1965. Upper Ordovician-Brachiopods from Poland and Britain. Acta Paleontologica Polonica 10:379-450
- J. W. Salter (5 May 1867). "Bala and Hirnant Limestone". Geological Magazine 4 (3): 233–234. doi:10.1017/S0016756800204548.
- Adam Sedgwick (1848). On the older Palaeozoic (protozoic) rocks of North Wales in Proc.Geol.Soc, London, Vol.4. https://babel.hathitrust.org/cgi/pt?id=hvd.32044107306813.
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