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Beacon Limestone Formation

The Beacon Limestone Formation, historically known as the Junction Bed, is a formation of the early Jurassic age (Pliensbachian–Toarcian). It lies above the Dyrham Formation and below the Bridport Sand Formation. It forms part of the Lias Group. It is found within the Wessex Basin and parts of Somerset,[1] in England. It is well known for the Strawberry Bank Lagerstätte, which contains the 3-dimensionally preserved remains of vertebrates, including marine crocodyliformes, ichthyosaurs and fish, as well as insect compression fossils.[2]

Fossil content

Among others, the following fossils have been reported from the formation:

Vertebrates

Invertebrates

References

  1. ^ "Beacon Limestone Formation". BGS Lexicon of Named Rock Units. Retrieved 8 March 2018.
  2. ^ a b c Williams, Matt; Benton, Michael J.; Ross, Andrew (November 2015). "The Strawberry Bank Lagerstätte reveals insights into Early Jurassic life". Journal of the Geological Society. 172 (6): 683–692. Bibcode:2015JGSoc.172..683W. doi:10.1144/jgs2014-144. hdl:1983/a7fc8bb4-889c-4fe9-b049-86d284141316. ISSN 0016-7649. S2CID 52971056.
  3. ^ a b Caine, Hannah; Benton, Michael J. (September 2011). "Ichthyosauria from the Upper Lias of Strawberry Bank, England". Palaeontology. 54 (5): 1069–1093. Bibcode:2011Palgy..54.1069C. doi:10.1111/j.1475-4983.2011.01093.x.
  4. ^ Marek, Ryan D.; Moon, Benjamin C.; Williams, Matt; Benton, Michael J. (15 June 2015). "The skull and endocranium of a Lower Jurassic ichthyosaur based on digital reconstructions". Palaeontology. 58 (4): 723–742. Bibcode:2015Palgy..58..723M. doi:10.1111/pala.12174. ISSN 0031-0239. S2CID 131581009.
  5. ^ Pierce, Stephanie E.; Benton, Michael J. (11 September 2006). "Pelagosaurus typus Bronn, 1841 (Mesoeucrocodylia: Thalattosuchia) from the Upper Lias (Toarcian, Lower Jurassic) of Somerset, England" (PDF). Journal of Vertebrate Paleontology. 26 (3): 621–635. doi:10.1671/0272-4634(2006)26[621:PTBMTF]2.0.CO;2. ISSN 0272-4634. S2CID 131524957.
  6. ^ Cawley, John J.; Kriwet, Jürgen; Klug, Stefanie; Benton, Michael J. (20 September 2018). "The stem group teleost Pachycormus (Pachycormiformes: Pachycormidae) from the Upper Lias (Lower Jurassic) of Strawberry Bank, UK". PalZ. 93 (2): 285–302. doi:10.1007/s12542-018-0431-7. hdl:1983/1a98e5d7-53a8-4f69-b1cd-64c284303128. ISSN 0031-0220.
  7. ^ Kelly, Richard S.; Ross, Andrew J.; Jarzembowski, Edmund A. (June 2016). "Earwigs (Dermaptera) from the Mesozoic of England and Australia, described from isolated tegmina, including the first species to be named from the Triassic". Earth and Environmental Science Transactions of the Royal Society of Edinburgh. 107 (2–3): 129–143. Bibcode:2016EESTR.107..129K. doi:10.1017/s1755691017000329. hdl:1983/d363e702-e4cb-4285-8ee8-393e808c890e. ISSN 1755-6910.
  8. ^ Kelly, Richard S.; Ross, Andrew J.; Coram, Robert A. (2018). "A Review of Necrotauliids from the Triassic/Jurassic of England (Trichoptera: Necrotauliidae)". Psyche: A Journal of Entomology. 2018: 1–12. doi:10.1155/2018/6706120. hdl:1983/06ae01fb-06bc-41d0-bcbd-f7519cb07df6. ISSN 0033-2615.