''Ancyrognathus'' is an extinct genus of conodonts.
During the
Famennian
The Famennian is the latter of two faunal stages in the Late Devonian Epoch. The most recent estimate for its duration estimates that it lasted from around 371.1 million years ago to 359.3 million years ago. An earlier 2012 estimate, still used b ...
stage of the Late Devonian, a biologic event occurred (Upper
Kellwasser Extinction of all ''
Ancyrodella'' and ''
Ozarkodina'' and most ''
Palmatolepis'', ''
Polygnathus'' and ''Ancyrognathus'').
References
External links
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Conodont genera
Devonian conodonts
Paleozoic life of Ontario
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