Pterospathodus

Pterospathodus is an extinct genus of conodont from the Silurian period.

Pterospathodus
Temporal range: Telychian–Sheinwoodian
Scientific classification
Kingdom:
Animalia
Phylum:
Chordata
Class:
†Conodonta
Order:
†Ozarkodinida
Family:
†Pterospathodontidae
Genus:
†Pterospathodus

Walliser 1964[1]
Species and subspecies
  • †Pterospathodus celloni
  • †Pterospathodus eopennatus
    • †P. eopennatus ssp. n. 1
    • †P. eopennatus ssp. n. 2
  • †Pterospathodus amorphognathoides
    • †P. amorphognathoides angulatus
    • †P. amorphognathoides lennarti
    • †P. amorphognathoides lithuanicus

Use in stratigraphy

The Telychian (Late Llandovery) of Estonia can be defined by five conodont zones (Pterospathodus eopennatus ssp. n. 1, P. eopennatus ssp. n. 2, P. amorphognathoides angulatus, P. a. lennarti and P. a. lithuanicus).[2]

The Sheinwoodian (Wenlock) is defined between the acritarch biozone 5 and the last appearance of Pterospathodus amorphognathoides. The global boundary stratotype point is in Hughley Brook in Apedale, U.K.

References
  1. Conodonten des Silurs. Otto H. Walliser, Hessisches Landesamt für Bodenforschung, 1964 - 106 pages
  2. An updated Telychian (Late Llandovery, Silurian) conodont zonation based on Baltic faunas. Peep Männik, Lethaia, Volume 40, Issue 1, pages 45–60, March 2007, doi:10.1111/j.1502-3931.2006.00005.x


This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.