''Neognathodus'' is an extinct genus of conodonts.
Use in stratigraphy
The
Bashkirian
The Bashkirian is in the ICS geologic timescale the lowest stage or oldest age of the Pennsylvanian. The Bashkirian age lasted from to Ma, is preceded by the Serpukhovian and is followed by the Moscovian.
The Bashkirian overlaps with the ...
, 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
''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 ''
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 ...
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 Societa Paleontologica Italiana, January 1998, volume 37, issue 2, pages 465-473
External links
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Conodont genera
Pennsylvanian conodonts
Bashkirian life
Moscovian life
Pennsylvanian first appearances
Pennsylvanian extinctions
Fossil taxa described in 1968
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