TaxNo: 3086Bisatoceras primum+
| Suborder: |
Goniatitina
|
| Superfamily: |
Thalassoceratoidea
|
| Family: |
Bisatoceratidae
|
| Genus: |
Bisatoceras
|
| Species: | primum+ |
| Qualifier: | ss |
| Author: |
Miller & Owen 1937,p.417
|
| Lower Boundary: |
Moscovian--Kasimovian [MOS--KAS], 306.5 million years
|
| Upper Boundary: |
U Missourian--Virgilian [MIS--VIR], 305 million years
|