Extinct genus of jawless fishes
Ancyrognathus
Temporal range: Late Devonian |
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†Ancyrognathus
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- †Ancyrognathus primus
- †Ancymgnathus symmetries (type)
- †Ancyrognathus triangularis
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Ancyrognathus is an extinct genus of conodonts.
During the Famennian stage of the Late Devonian, a biologic event occurred (Upper Kellwasser Extinction of all Ancyrodella and Ozarkodina and most Palmatolepis, Polygnathus and Ancyrognathus).
References
- ^ Conodonts from Glassy Creek Shale of Missouri. EB Branson and MG Mehl, Univ. Missouri Studies, 1934
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