Bearreraig Sandstone Formation | |
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Stratigraphic range: Toarcian-Bajocian ~182–171 Ma PreꞒ Ꞓ O S D C P T J K Pg N | |
Cross-bedded sandstone of the Bearrereaig Sandstone Formation near Glasnakille, Skye | |
Type | Formation |
Unit of | Hebrides Basin |
Sub-units | Druim An Fhurain Sandstone Member, Garantiana Mudstone Member |
Underlies | Cullaidh Shale Formation |
Overlies | Raasay Ironstone Formation |
Thickness | up to 488 m (1,601 ft) |
Lithology | |
Primary | Calcareous sandstone |
Other | Limestone, mudstone |
Location | |
Coordinates | 57°30′N 6°06′W / 57.5°N 6.1°W / 57.5; -6.1 |
Approximate paleocoordinates | 45°54′N 4°36′E / 45.9°N 4.6°E / 45.9; 4.6 |
Region | Hebrides Basin, Inner Hebrides, Ardnamurchan, Scotland |
Country | United Kingdom |
Type section | |
Named for | Bearreraig Bay |
Bearreraig Sandstone Formation (the United Kingdom)Show map of the United KingdomBearreraig Sandstone Formation (Scotland)Show map of Scotland |
The Bearreraig Sandstone Formation is a geological formation in Scotland. It preserves fossils dating back to the lower to middle parts of the Jurassic period (Toarcian–Bajocian). The remains of the proximal portion of a right ulna and radius of an indeterminate thyreophoran dinosaur are known from the formation. The ichthyosaur Dearcmhara is also known from the formation.
See also
References
- British Geological Survey. "Bearreraig Sandstone Formation". BGS Lexicon of Named Rock Units. Retrieved 8 March 2018.
- Clark, N. D. L. (1 May 2001). "A thyreophoran dinosaur from the Early Bajocian (Middle Jurassic) of the Isle of Skye, Scotland". Scottish Journal of Geology. 37 (1): 19–26. Bibcode:2001ScJG...37...19C. doi:10.1144/sjg37010019. ISSN 0036-9276.
- Brusatte, Stephen L.; Young, Mark T.; Challands, Thomas J.; Clark, Neil D. L.; Fischer, Valentin; Fraser, Nicholas C.; Liston, Jeff J.; MacFadyen, Colin C. J.; Ross, Dugald A.; Walsh, Stig; Wilkinson, Mark (April 2015). "Ichthyosaurs from the Jurassic of Skye, Scotland". Scottish Journal of Geology. 51 (1): 43–55. Bibcode:2015ScJG...51...43B. doi:10.1144/sjg2014-018. hdl:20.500.11820/3199e6cb-1bf6-4e32-bf5e-acd1d7157532. ISSN 0036-9276.
Further reading
- R. M. Bateman, N. Morton, and B.L. Dower. 2000. Early Middle Jurassic plant communities in Northwest Scotland: Paleoecological and paleoclimatic significance. GeoResearch Forum 6:501-512
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