Sweetognathus expansus
| Sweetognathus | |
|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | †Conodonta |
| (unranked): | †Prioniodontida |
| Order: | †Ozarkodinida |
| Family: | †Sweetognathidae |
| Genus: |
†Sweetognathus Clark, 1972 |
| Species | |
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Sweetognathus is an extinct genus of conodonts in the family Sweetognathidae.
The genus is characterized by pustulose ornamentation on a wide, flat-topped carina. It originated in the earliest Permian as S. expansus from Diplognathodus edentulus.
Sweetognathus forms a species complex.
The genus is named after paleontologist Walter C. Sweet.
According to the List of Global Boundary Stratotype Sections and Points, the species Sweetognathus whitei made its first appearance during the Artinskian (some 290.1 ± 0.26 mya), in the Permian of the Ural mountains.
The species Sweetognathus merrelli is near first appearance during the Sakmarian (some 295.0 ± 0.18 mya) in the Permian of Kondurovsky, Orenburg, Russia.
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