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Palmatolepis

Palmatolepis is an extinct conodont genus in the family Palmatolepidae. It was the most abundant genus of conodonts of the Late Devonian, disappearing during the Devonian/Carboniferous crisis.

Species

  • †Palmatolepis glabra
  • †Palmatolepis hassi
  • †Palmatolepis khaensis Savage 2013
  • †Palmatolepis marki Savage 2013
  • †Palmatolepis spallettae
  • †Palmatolepis subperlobata
  • †Palmatolepis subperlobata lapoensis Savage 2013
  • †Palmatolepis triangularis
  • †Palmatolepis unicornis

Use in stratigraphy

The Famennian (372.2 ± 1.6 mya) is defined by a GSSP Golden Spike located at Coumiac quarry, Montagne Noire, France where there is a biologic abundant occurrence of Palmatolepis triangularis.

During that stage, a biologic event occurred (Upper Kellwasser Extinction of all Ancyrodella and Ozarkodina and most Palmatolepis, Polygnathus and Ancyrognathus.

References

  • Morphological variation of Palmatolepis Devonian conodonts: species versus genus. Catherine Girard, Sabrina Renaud and Aurélie Sérayet, Comptes Rendus Palevol, Volume 3, Issue 1, January 2004, Pages 1–8, (article in French)
  • Shape Analysis of Frasnian Species of the Late Devonian Conodont Genus Palmatolepis. Gilbert Klapper and C. T. Foster, Jr., Memoir (The Paleontological Society), Vol. 32, Supplement to Vol. 67, no. 4 of the Journal of Paleontology (Jul., 1993), pages 1–35 (Stable URL, retrieved 2 May 2016)

External links