Patrognathus
Extinct genus of jawless fishes
From Wikipedia, the free encyclopedia
Patrognathus is an extinct genus of conodonts.
| Patrognathus Temporal range: | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Infraphylum: | Agnatha |
| Class: | †Conodonta |
| Order: | †Ozarkodinida |
| Family: | †Cavusgnathidae |
| Genus: | †Patrognathus Rhodes, Austin & Druce, 1969[1] |
| Species | |
| |
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
