| Suborder: |
Goniatitina
|
| Superfamily: |
Pericycloidea
|
| Family: |
Muensteroceratidae
|
| Genus: |
Nautellipsites
|
| Species: | ovatus |
| Qualifier: | sn |
| Author: |
Sowerby 1813,p.83
|
| Lower Boundary: |
low.Tournais.--mid.Tournais. [Tn1--Tn2], 357.5 million years
|
| Upper Boundary: |
Up.Visean Goniatites BZ base [up.VIS], 333.5 million years
|
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