Neognathodus
# Neognathodus

Neognathodus is an extinct genus of conodonts.

## Use in stratigraphy

The Bashkirian, the oldest age of the Pennsylvanian (also known as Upper Carboniferous), contains six biozones based on conodont index fossils, two of which contain Neognathodus species:

* the zone of Neognathodus atokaensis
* the zone of Neognathodus askynensis

The base of the Moscovian, the second stage in the Pennsylvanian, can biostratigraphically be divided into five conodont biozones, three of which contain Neognathodus species:

* the zone of Neognathodus roundyi and Streptognathodus cancellosus
* the zone of Neognathodus medexultimus and Streptognathodus concinnus
* the zone of Neognathodus uralicus
