TaxNo: 3295Texoceras texanum+
| Suborder: |
Goniatitina
|
| Superfamily: |
Adrianitoidea
|
| Family: |
Adrianitidae
|
| Subfamily: |
Texoceratinae
|
| Genus: |
Texoceras
|
| Species: | texanum+ |
| Qualifier: | ss |
| Author: |
Girty 1908,p.501
|
| Lower Boundary: |
Sakmarian--Artinskian [SAK--ART], 284.4 million years
|
| Upper Boundary: |
Roadian--Wordian (Murgabian) [ROA--WOR], 268 million years
|