TaxNo: 5326Genus Gemmellaroceras
| Suborder: |
Goniatitina
|
| Superfamily: |
Popanoceratoidea
|
| Family: |
Popanoceratidae
|
| Genus: | Gemmellaroceras |
| Qualifier: | gh |
| Author: |
Tumanskaia 1937,p.470
|
| Valid: | Tauroceras Tumanskaya 1938,p.145 |
| Lower Boundary: |
Roadian--Wordian (Murgabian) [ROA--WOR], 268 million years
|
| Upper Boundary: |
Wordian--Capitanian (Midian) [WOR--CAP], 265.8 million years
|