TaxNo: 6366Syngastrioceras nandanense
| Suborder: |
Goniatitina
|
| Superfamily: |
Gastrioceratoidea
|
| Family: |
Glaphyritidae
|
| Subfamily: |
Glaphyritinae
|
| Genus: |
Syngastrioceras
|
| Species: | nandanense |
| Qualifier: | sn |
| Author: |
Xu 1977,p.564
|
| Lower Boundary: |
CNG Qixu 15--16, 313 million years
|
| Upper Boundary: |
CNG Qixu 16 top, 309.5 million years
|