Patrognathus

Patrognathus; Temporal range: Tournaisian PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	†Conodonta
(unranked):	†Prioniodontida
Order:	†Ozarkodinida
Superfamily:	†Polygnathacea
Family:	†Cavusgnathidae
Genus:	†Patrognathus; Rhodes, Austin & Druce, 1969
Species
	†Patrognathus andersoni; †Patrognathus crassus; †Patrognathus variabilis;

Patrognathus is an extinct genus of conodonts.

Use in stratigraphy[edit]

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[edit]

^ 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[edit]

"Patrognathus" at the Encyclopedia of Life
"Patrognathus". Fossilworks. Gateway to the Paleobiology Database. Retrieved 5 July 2016.

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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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