TaxNo: 5492Isohomoceras ventrosum
| Suborder: |
Goniatitina
|
| Superfamily: |
Gastrioceratoidea
|
| Family: |
Homoceratidae
|
| Subfamily: |
Homoceratinae
|
| Genus: |
Isohomoceras
|
| Species: | ventrosum |
| Qualifier: | ss |
| Author: |
Nikolaeva 1994,p.98
|
| Lower Boundary: |
RUS Nm1c2--Nm2a1, Homoc.-Hudsonoc.GZ, 318.1 million years
|
| Upper Boundary: |
RUS Nm2a2--Nm2b1,Reticuloc.-Bashkortoc.G, 317.2 million years
|