TaxNo: 4322Aricoceras ensifer+
| Suborder: |
Goniatitina
|
| Superfamily: |
Adrianitoidea
|
| Family: |
Adrianitidae
|
| Subfamily: |
Adrianitinae
|
| Genus: |
Aricoceras
|
| Species: | ensifer+ |
| Qualifier: | ss |
| Author: |
Gemmellaro 1887,p.46
|
| Lower Boundary: |
Roadian--Wordian (Murgabian) [ROA--WOR], 268 million years
|
| Upper Boundary: |
Wordian--Capitanian (Midian) [WOR--CAP], 265.8 million years
|