Skip to content

Middle Telychian (Llandovery, Silurian) graptolites and biostratigraphy of the Howgill Fells, England, based upon the collections of D.W.R. Wilson housed in the Lapworth Museum of Geology, University of Birmingham

Research output: Contribution to journalArticlepeer-review

Examination of D.W.R. Wilson's PhD graptolite collection from the Howgill Fells, housed in the Lapworth Museum of Geology, University of Birmingham, reveals a high diversity (23 species) of middle Telychian graptolites from the uppermost Streptograptus crispus and Streptograptus sartorius (and possibly lowermost Monoclimacis griestoniensis) biozones. The collections include the first British records of Pseudoplegmatograptus hexagonalis and Pristiograptus pergratus. The stratigraphical range of P. pristinus is extended upwards, into the sartorius Biozone. One specimen of Stimulograptus clintonensis shows remarkable dorsal rhabdosome curvature proximally. Torquigraptus is particularly diverse in the sartorius Biozone with at least six species present: one new species, T. wilsoni, is described and two probable new species, one of which is very similar to the lower Telychian T. cavei, are left in open nomenclature.
Original languageEnglish
JournalProceedings of the Yorkshire Geological Society
Early online date17 Feb 2020
DOIs
Publication statusEarly online - 17 Feb 2020

Documents

  • Middle Telychian

    Rights statement: David K. Loydell, 'Middle Telychian (Llandovery, Silurian) graptolites and biostratigraphy of the Howgill Fells, England, based upon the collections of D.W.R. Wilson housed in the Lapworth Museum of Geology, University of Birmingham.' Proceedings of the Yorkshire Geological Society, 17 February 2020. https://doi.org/10.1144/pygs2019-014. © 2020 The Author(s).

    Accepted author manuscript (Post-print), 3.42 MB, PDF document

    Due to publisher’s copyright restrictions, this document is not freely available to download from this website until: 17/02/21

Related information

Relations Get citation (various referencing formats)

ID: 18986992