TaxNo: 4655Girtyoceras tomasi
| Suborder: |
Goniatitina
|
| Superfamily: |
Dimorphoceratoidea
|
| Family: |
Girtyoceratidae
|
| Subfamily: |
Girtyoceratinae
|
| Genus: |
Girtyoceras
|
| Species: | tomasi |
| Qualifier: | ss |
| Author: |
Wagner-Gentis 1983,p.31
|
| Lower Boundary: |
Visean--Namurian/Serpukhovian [VIS--NAM], 326.4 million years
|
| Upper Boundary: |
Pendleian--Arnsbergian [PND--ARN], 324 million years
|