TaxNo: 5092Genus Nielsenoceras
| Suborder: |
Paraceltitina
|
| Superfamily: |
Xenodiscoidea
|
| Family: |
Paraceltitidae
|
| Genus: | Nielsenoceras |
| Qualifier: | ge |
| Author: |
Furnish 1966,p.292
|
| Lower Boundary: |
Wordian--Capitanian (Midian) [WOR--CAP], 265.8 million years
|
| Upper Boundary: |
lower Capitanian--upper Capitanian, 263 million years
|