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Patrognathus is an extinct genus of conodonts.

Use in stratigraphy

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

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)

External links

• "Patrognathus". The Encyclopedia of Life.
• "Patrognathus". Paleobiology Database. Retrieved 5 July 2016.

This article about a conodont is a stub. You can help Misplaced Pages by expanding it.

• v
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• Ozarkodinida genera
• Mississippian conodonts
• Tournaisian life
• Fossil taxa described in 1969
• Mississippian first appearances
• Mississippian extinctions
• Conodont stubs