TaxNo: 5299Genus Istycoceras
| Suborder: |
Goniatitina
|
| Superfamily: |
Adrianitoidea
|
| Family: |
Adrianitidae
|
| Subfamily: |
Adrianitinae
|
| Genus: | Istycoceras |
| Qualifier: | gy |
| Author: |
Pavlov 1967,p.74
|
| Valid: | Crimites Tumanskaya 1937,p.146 ? |
| Lower Boundary: |
Kochusu Fm., upper, lower--middel part, 268.9 million years
|
| Upper Boundary: |
Kochusu Fm., upper, middle--upper part, 268.5 million years
|