TaxNo: 6566Eosyngastrioceras quadratum+
| Suborder: |
Goniatitina
|
| Superfamily: |
Gastrioceratoidea
|
| Family: |
Glaphyritidae
|
| Subfamily: |
Glaphyritinae
|
| Genus: |
Eosyngastrioceras
|
| Species: | quadratum+ |
| Qualifier: | ss |
| Author: |
Titus 2000,p.39
|
| Lower Boundary: |
GBY E1b -- E1c; DER E1 alpha -- E1 beta, 325 million years
|
| Upper Boundary: |
DER E2a--E2b, 322.5 million years
|