Palmatolepis
(Redirected from Palmatolepis unicornis)
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| Genus: | †Palmatolepis |
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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.[2]
Species
[edit]- †Palmatolepis glabra
- †Palmatolepis hassi[3]
- †Palmatolepis khaensis Savage 2013
- †Palmatolepis marki Savage 2013
- †Palmatolepis spallettae
- †Palmatolepis subperlobata
- †Palmatolepis subperlobata lapoensis Savage 2013
- †Palmatolepis triangularis
- †Palmatolepis unicornis
Use in stratigraphy
[edit]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
[edit]- ^ Zur Kenntnis der Conodonten-Fauna des europäischen Devons. 1. Die Gattung Palmatolepis. KJ Müller, 1956
- ^ Disparity Changes in 370 Ma Devonian Fossils: The Signature of Ecological Dynamics? Girard C and Renaud S (2012), PLoS ONE, 7(4): e36230, doi:10.1371/journal.pone.0036230
- ^ Locality 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).
- 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, doi:10.1016/j.crpv.2003.09.008 (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
[edit]- "Palmatolepis" at the Encyclopedia of Life
- Palmatolepis at fossilworks.org (retrieved 2 May 2016)
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