Dolhir Formation
Appearance
![](http://upload.wikimedia.org/wikipedia/commons/thumb/3/38/Gravicalymene_arcuata.jpg/220px-Gravicalymene_arcuata.jpg)
Dolhir Formation | |
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Stratigraphic range: Ashgill Series | |
Type | Formation |
Underlies | Mudstones of the Fron Frys Formation. |
Overlies | Unconformable on various Caradoc Formations. |
Thickness | 490 metres. Lateral variations, 320 - 490 metres. |
Location | |
Region | Wales |
Country | ![]() |
Extent | Not defined |
The Dolhir Formation is a geologic formation in Wales. It preserves fossils dating back to the Ordovician period.
See also
[edit]References
[edit]- ^ Price, D. 1982. Calymene quadrata King, 1923 and allied species of trilobites from the Ashgill Series of North Wales. Geological Magazine, Volume 119 , Issue 1 , January 1982 , pp. 57 - 66. DOI: https://doi.org/10.1017/S0016756800025656
- Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 17 December 2021.