Sandstones of the Valtos Sandstone Formation outcropping between two dolerite sills, the Kilt Rock, Trotternish, Skye
Type
Formation
Unit of
Great Estuarine Group
Underlies
Duntulm Formation
Overlies
Lealt Shale Formation
Thickness
up to 120 m
Lithology
Primary
sandstone
Other
limestone, mudstone
Location
Region
Scotland
Country
United Kingdom
Extent
Inner Hebrides
Type section
Named for
Valtos, Skye
Named by
Harris and Hudson
Location
Cliffs between Valtos and Mealt Falls
Year defined
1980
Thickness at type section
95 m
The Valtos Sandstone Formation is a Middle Jurassic (Bathonian) formation found in the Inner Hebrides of Scotland. It is the thickest member of the Great Estuarine Group. The lithology consists of sets of approximately 6 metre thick cross bedded sandstone, capped by thin shelly limestones containing bivalves of the genus Neomiodon[1] Dinosaur remains are among the fossils that have been recovered from the formation, although none have yet been referred to a specific genus.[2]
Archosaurs of the Valtos Formation[3]
Genus
Species
Location
Stratigraphic position
Abundance
Notes
Images
Theriosuchus
Indeterminate
Dentary fragment[4]
Sauropoda
Indeterminate
Near Valtos
Limb bone, rib, caudal vertebra, Tooth
Stegosauria
Indeterminate
Isle of Eigg
Fibula[5]
Theropoda
Indeterminate
Teeth and caudal vertebra
Vertebra likely to belongs to a coelurosaur
^British Geological Survey. "Valtos Sandstone Formation". BGS Lexicon of Named Rock Units. Retrieved 8 March 2018.
^Weishampel, et al. (2004). "Dinosaur distribution." Pp. 517-607.
^Clark, Neil D. L. (5 February 2018). "Review of the Dinosaur Remains from the Middle Jurassic of Scotland, UK". Geosciences. 8 (2): 53. Bibcode:2018Geosc...8...53C. doi:10.3390/geosciences8020053.
^Young, Mark T.; Tennant, Jonathan P.; Brusatte, Stephen L.; Challands, Thomas J.; Fraser, Nicholas C.; Clark, Neil D. L.; Ross, Dugald A. (February 2016). "The first definitive Middle Jurassic atoposaurid (Crocodylomorpha, Neosuchia), and a discussion on the genus T heriosuchus: Middle Jurassic T heriosuchus From Skye". Zoological Journal of the Linnean Society. 176 (2): 443–462. doi:10.1111/zoj.12315. PMC 4989461. PMID 27594716.
^PANCIROLI, Elsa; FUNSTON, Gregory F.; HOLWERDA, Femke; MAIDMENT, Susannah C. R.; FOFFA, Davide; LARKIN, Nigel; CHALLANDS, Tom; DEPOLO, Paige E.; GOLDBERG, Daniel; HUMPAGE, Matthew; ROSS, Dugald (27 August 2020). "First dinosaur from the Isle of Eigg (Valtos Sandstone Formation, Middle Jurassic), Scotland". Earth and Environmental Science Transactions of the Royal Society of Edinburgh. 111 (3): 157–172. Bibcode:2020EESTR.111..157P. doi:10.1017/s1755691020000080. ISSN 1755-6910.
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