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.Disparity Changes in 370 Ma Devonian Fossils: The Signature of Ecological Dynamics? Girard C and Renaud S (2012), PLoS ONE, 7(4): e36230,
Species †Palmatolepis glabra †Palmatolepis hassiLocality and horizon: Upper part of the Grey Member, Ferques Formation, La Parisienne quarry (now flooded), Pas-de-Calais, France. Specimen from lowermost Ag. triangularis Conodont Zone, equivalent to late Palmatolepis hassi Zone (ca. 373 Ma, Frasnian). †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
Palmatolepis at fossilworks.org (retrieved 2 May 2016)