Fish Bed Formation

Fish Bed Formation
Fish Bed Formation
Stratigraphic range: Wenlock; ~428–423 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
Type	Formation
Unit of	Glenbuck Group
Lithology
Primary	Sandstone, conglomerate
Other	Shale, siltstone
Location
Coordinates	55°30′N 3°54′W / 55.5°N 3.9°W
Approximate paleocoordinates	17°54′S 18°18′W / 17.9°S 18.3°W
Region	South Lanarkshire
Country	Scotland
	Fish Bed Formation (Scotland)

The Fish Bed Formation is a geologic formation in Scotland, United Kingdom. The fluvial to lacustrine sandstones, shales, siltstones and conglomerates preserve flora, arthropods, among which eurypterids, invertebrates and early fish fossils dating back to the Wenlock epoch of the Silurian period.^[1]

Description

The fish beds are contained within red-bed sequences comprising conglomerates, sandstones and siltstones that exhibit sedimentological features suggestive of deposition in terrestrial–fluviatile and lacustrine environments (Bluck 2002). The sporomorph assemblage from the Fish Bed Formation indicates that it is entirely non-marine and was most likely deposited in a relatively permanent lacustrine setting (Wellman and Richardson 1993).^[2]

The formation, at the time part of Avalonia, was deposited during the Grampian orogeny.

Fossil content

The Fish Bed Formation has provided fossils of:^[1]

Fish

Arthropods

Casiogrammus ichthyeros^[4]

Eurypterids

Invertebrates

Gastropods

Ateleaspis sp.^[3]

Flora

Plantae indet.^[3]

References

^ ^a ^b Fish Bed Formation at Fossilworks.org
^ Smithy Burn, Hagshaw Hills Inlier at Fossilworks.org
^ ^a ^b ^c ^d ^e ^f ^g ^h Plotnick, 1999
^ Wilson, 2005

Bibliography

Wilson, H. M. 2005. Zosterogrammida, a new order of millipedes from the middle Silurian of Scotland and the upper Carboniferous of Euramerica. Palaeontology 48. 1101–1110. .

Plotnick, R. E. 1999. Habitat of Llandoverian-Lochkovian eurypterids, 106–136. in A. J. Boucot, J. D. Lawson (eds.), Paleocommunities - a case study from the Silurian and Lower Devonian.

[FW-1] Fish Bed Formation at Fossilworks.org

[FWSmithy-2] Smithy Burn, Hagshaw Hills Inlier at Fossilworks.org

[Plotnick1999-3] ^ ^a ^b ^c ^d ^e ^f ^g ^h Plotnick, 1999

[Wilson2005-4] Wilson, 2005

[1]

[2]

[3]

[4]

Fish Bed Formation
Stratigraphic range: Wenlock ~428–423 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
Type	Formation
Unit of	Glenbuck Group
Lithology
Primary	Sandstone, conglomerate
Other	Shale, siltstone
Location
Coordinates	55°30′N 3°54′W / 55.5°N 3.9°W / 55.5; -3.9
Approximate paleocoordinates	17°54′S 18°18′W / 17.9°S 18.3°W / -17.9; -18.3
Region	South Lanarkshire
Country	Scotland
Fish Bed Formation (Scotland)