| Suborder: |
Goniatitina
|
| Superfamily: |
Neoglyphioceratoidea
|
| Family: |
Cravenoceratidae
|
| Subfamily: |
Cravenoceratinae
|
| Genus: |
Cravenoceras?
|
| Species: | bobrovnikense |
| Qualifier: | ss |
| Author: |
Patteisky 1936,p.12
|
| Lower Boundary: |
DER lowest E1--E1 alpha, 326 million years
|
| Upper Boundary: |
Pendleian--Arnsbergian [PND--ARN], 324 million years
|
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