TaxNo: 2213Girtyoceras glabrum
| Suborder: |
Goniatitina
|
| Superfamily: |
Dimorphoceratoidea
|
| Family: |
Girtyoceratidae
|
| Subfamily: |
Girtyoceratinae
|
| Genus: |
Girtyoceras
|
| Species: | glabrum |
| Qualifier: | ss |
| Author: |
Ruzhencev & Bog. 1971,p.171
|
| Lower Boundary: |
RUS Nm1a2--Nm1b1,Uralopron.-Cravenoc. GZ, 326.4 million years
|
| Upper Boundary: |
RUS Nm1b1--Nm1b2 (Domb.carinat.--tectus), 324.6 million years
|