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Patrognathus

From Wikipedia, the free encyclopedia

Patrognathus
Temporal range: Tournaisian
Scientific classification
Kingdom:
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(unranked):
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Genus:
Patrognathus

Species
  • Patrognathus andersoni
  • Patrognathus crassus
  • Patrognathus variabilis

Patrognathus is an extinct genus of conodonts.

Use in stratigraphy

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The Tournaisian, the oldest age of the Mississippian (also known as Lower Carboniferous) contains eight conodont biozones, four of which contain Patrognathus species:

  • the zone of Siphonodella quadruplicata and Patrognathus andersoni (upper zone of Patrognathus andersoni)
  • the lower zone of Patrognathus andersoni
  • the zone of Patrognathus variabilis
  • the zone of Patrognathus crassus

References

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  1. ^ British Avonian (Carboniferous) conodont faunas, and their value in local and intercontinental correlation. FHT Rhodes, RL Austin, EC Druce, 1969, British Museum (Natural History)
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  • "Patrognathus" at the Encyclopedia of Life
  • "Patrognathus". Paleobiology Database. Retrieved 5 July 2016.