TaxNo: 6423Akiyoshiceras subridens+
| Suborder: |
Goniatitina
|
| Superfamily: |
Neoicoceratoidea
|
| Family: |
Neoicoceratidae
|
| Subfamily: |
Neoicoceratinae
|
| Genus: |
Akiyoshiceras
|
| Species: | subridens+ |
| Qualifier: | ss |
| Author: |
Kyuma & Nishida 1987,p.28
|
| Lower Boundary: |
RUS Branner./Gastr.--Diabol./Winslow. GZ, 311.7 million years
|
| Upper Boundary: |
Diabol./Winsl--Paralego./Eowellerites GZ, 309.5 million years
|