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Extinct genus of jawless fishes
PterospathodusTemporal range:
Telychian–Sheinwoodian
Scientific classification
Kingdom:
Phylum:
Class:
Order:
Family:
Genus:
†Pterospathodus
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
Pterospathodus is an extinct genus of
conodont from the
Silurian period.
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
^ Conodonten des Silurs. Otto H. Walliser, Hessisches Landesamt für Bodenforschung, 1964 - 106 pages
^ 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
External links