''Neognathodus'' is an extinct genus of conodonts.

Use in stratigraphy

The

Bashkirian The Bashkirian is in the International Commission on Stratigraphy geologic timescale the lowest stage (stratigraphy), stage or oldest age (geology), age of the Pennsylvanian (geology), Pennsylvanian. The Bashkirian age lasted from to Mega annu ...

, the oldest age of the

Pennsylvanian Pennsylvanian may refer to: * A person or thing from Pennsylvania * Pennsylvanian (geology) The Pennsylvanian ( , also known as Upper Carboniferous or Late Carboniferous) is, on the International Commission on Stratigraphy, ICS geologic timesc ...

(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 Moscovian may refer to: *An inhabitant of Moscow, the capital of Russia *Something of, from, or related to Moscow *Moscovian (Carboniferous) The Moscovian is in the International Commission on Stratigraphy, ICS geologic timescale a stage (strat ...

, 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 ''Streptognathodus'' is an extinct genus of conodonts from the Late Carboniferous to Early Permian. Use in stratigraphy Late Carboniferous The top of the Kasimovian stage is close to the first appearance of ''Streptognathodus zethus''. The ...

cancellosus'' * the zone of ''Neognathodus medexultimus'' and ''

concinnus'' * the zone of ''Neognathodus uralicus''

References

* Taxonomy, Phylogeny, and Biostratigraphy of Neognathodus in Appalachian Pennsylvanian Rocks. Glen K. Merrill, Journal of Paleontology, Vol. 46, No. 6 (Nov., 1972), pages 817-829
Stable URL
* Apparatus of the Pennsylvanian Conodont genus Neognathodus. Glen K Merrill and Peter H Von Bitter,

Royal Ontario Museum The Royal Ontario Museum (ROM) is a museum of art, world culture and natural history in Toronto, Ontario, Canada. It is one of the largest museums in North America and the largest in Canada. It attracts more than one million visitors every year ...

, 1977, pages 11–13 * Neognathodus and the species concept in conodont paleontology. Glen K Merrill, Bollettino della Società Paleontologica Italiana, January 1998, volume 37, issue 2, pages 465-473

External links

* * Conodont genera Pennsylvanian conodonts Bashkirian life Moscovian life Pennsylvanian first appearances Pennsylvanian extinctions Fossil taxa described in 1968 {{conodont-stub