TaxNo: 3883Syrdenites sp.
| Suborder: |
Prolecanitina
|
| Superfamily: |
Medlicottioidea
|
| Family: |
Medlicottiidae
|
| Subfamily: |
Medlicottiinae
|
| Genus: |
Syrdenites
|
| Species: | sp. |
| Qualifier: | in |
| Author: |
div. authors
|
| Lower Boundary: |
AZB base Araxoceras beds, 260.4 million years
|
| Upper Boundary: |
AZB Araxoceras--Vedioceras beds, 256 million years
|