TaxNo: 3333Mexicoceras guadalupense guadalupense+
| Suborder: |
Goniatitina
|
| Superfamily: |
Cycloloboidea
|
| Family: |
Cyclolobidae
|
| Subfamily: |
Kufengoceratinae
|
| Genus: |
Mexicoceras
|
| NomSpecies: |
guadalupense
|
| Species: | guadalupense+ |
| Qualifier: | ss |
| Author: |
Girty 1908,p.502
|
| Lower Boundary: |
Roadian--Wordian (Murgabian) [ROA--WOR], 268 million years
|
| Upper Boundary: |
Wordian--Capitanian (Midian) [WOR--CAP], 265.8 million years
|