Patrick Burn Formation

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Patrick Burn Formation
Stratigraphic range: Upper Llandovery
Type Formation
Unit of Priesthill Group
Underlies Castle Formation
Overlies Ponesk Burn Formation (presumed, actual boundary is cut by a fault)
Thickness850 m
Lithology
Primary Sandstone, Siltstone, Mudstone
Location
Region Scotland
CountryUnited Kingdom

The Patrick Burn Formation is a Silurian aged geological formation outcropping near Lesmahagow in Lanarkshire in the Scottish Lowlands. Fossils are known from the formation, including from the Birk Knowes locality. [1] [2]

Contents

Description

According to the British Geological Survey, the primary lithology of the formation consists of "Alternating beds of grey feldspathic, medium-grained turbiditic sandstone and grey siltstone with beds of grey laminated siltstone and silty mudstone." [3] The Birk Knowes site contains fossils from non-marine or marginal marine environment. [4] In 2000, Birk Knowes was closed by the Scottish government agency Scottish Natural Heritage (now NatureScot), due to the theft of specimens from the site by amateur collectors during the preceding decades, who essentially exhausted the fossiliferous deposit. At least some of the fossils ended up in a museum in Berlin, who refused to return them. [5] [6] [7] [8]

Paleobiota

Arthropods

Arthropods
SpeciesNotesImages
Slimonia acuminata A slimonid eurypterid.
Slimonia acuminata reconstruction.jpg
Erettopterus bilobus A pterygotid eurypterid.
20210102 Erettopterus bilobus.png
Selkiepterella lanceolata An adelophthalmid eurypterid, previously a species of Nanahughmilleria . [9]
Waterstonopterus lanarkensis A hardieopterid eurypterid, previously a species of Hardieopterus .
Loganamaraspis dunlopi A chasmataspidid.
Cyamocephalus loganensis A synziphosurine.
20200814 Cyamocephalus loganensis.png
Pseudoniscus falcatus A synziphosurine.
Ainiktozoon loganense A thylacocephalan.
Ainiktozoon loganese.jpg
Ceratiocaris papilio A phyllocarid.
FMIB 46280 Ceratiocaris papilio, one of the fossil Phyllocarda.jpeg

Chordates

Chordates
SpeciesNotesImages
Loganellia scotica A loganelliid thelodont.
Fossil Thelodus Woodward.png
Jamoytius kerwoodi An enigmatic chordate.
Jamoytius kerwoodi.jpg

See also

References

  1. ↑ D., Dineley; S., Metcalf (1999). Fossil Fishes of Great Britain. Geological Conservation Review Series. Vol. 16. Peterborough. ISBN   1-86107-470-0.
  2. ↑ Žigaitė, Živile; Goujet, Daniel (2012). "New observations on the squamation patterns of articulated specimens ofLoganellia scotica(Traquair, 1898) (Vertebrata: Thelodonti) from the Lower Silurian of Scotland" . Geodiversitas. 34 (2): 253–270. doi:10.5252/g2012n2a1. ISSN   1280-9659. S2CID   73663549.
  3. ↑ "Patrick Burn Formation". BGS Lexicon of Named Rock Units. British Geological Survey. Retrieved 2 September 2023.
  4. ↑ Tetlie, O. Erik; Braddy, Simon J. (2003). "The first Silurian chasmataspid, Loganamaraspis dunlopi gen. et sp. nov. (Chelicerata: Chasmataspidida) from Lesmahagow, Scotland, and its implications for eurypterid phylogeny" . Earth and Environmental Science Transactions of the Royal Society of Edinburgh. 94 (3): 227–234. doi:10.1017/S0263593300000638. ISSN   1473-7116. S2CID   73596575.
  5. ↑ Williams, Huw (2003). "Filched Fish Fossils". BBC Radio 4 Today. Retrieved 12 January 2023.
  6. ↑ Hose, Thomas A. (1 April 2012). "3G's for Modern Geotourism" . Geoheritage. 4 (1): 7–24. Bibcode:2012Geohe...4....7H. doi:10.1007/s12371-011-0052-y. ISSN   1867-2485. S2CID   144250723.
  7. ↑ Langlands, Eva (1 September 2023). "Looters destroy Scotland's fossil heritage sites". The Times . ISSN   0140-0460 . Retrieved 1 September 2023.
  8. ↑ University of Glasgow 23 May 2002 MOVE TO HALT FOSSIL THEFT AND DAMAGE IN SCOTLAND
  9. ↑ Lamsdell, James C. (2025). "Codex Eurypterida: A Revised Taxonomy Based on Concordant Parsimony and Bayesian Phylogenetic Analyses". Bulletin of the American Museum of Natural History. 2025 (473). doi:10.1206/0003-0090.473.1.1.full. ISSN   0003-0090. Archived from the original on 7 July 2025. Retrieved 27 July 2025.


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