Coral Rag Formation
|Coral Rag Formation|
Stratigraphic range: Jurassic
The rock forms some of the hills around Oxford, and was once used as a building stone. Coral rag can be seen in some of the oldest buildings in that city including the Saxon tower of St Michael at the Northgate, St. George's Tower of Oxford Castle, and for the mediaeval walls of the city.
- "Strategic Stone Study: A Building Stone Atlas of Oxfordshire". English Heritage. March 2011. Retrieved 23 April 2015.
- Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Archived from the original on 31 July 2014. Retrieved 8 July 2014.
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