TaxNo: 3235Neogeoceras boreale
| Suborder: |
Prolecanitina
|
| Superfamily: |
Medlicottioidea
|
| Family: |
Medlicottiidae
|
| Subfamily: |
Medlicottiinae
|
| Genus: |
Neogeoceras
|
| Species: | boreale |
| Qualifier: | ss |
| Author: |
Chernyshev 1926,p.1
|
| Lower Boundary: |
Roadian--Wordian (Murgabian) [ROA--WOR], 268 million years
|
| Upper Boundary: |
RIT Amarassi beds top, 258 million years
|