TaxNo: 1347Archoceras varicosum
| Suborder: |
Anarcestina
|
| Superfamily: |
Anarcestoidea
|
| Family: |
Anarcestidae
|
| Subfamily: |
Werneroceratinae
|
| Genus: |
Archoceras
|
| Species: | varicosum |
| Qualifier: | ss |
| Author: |
Drevermann 1901,p.140
|
| Lower Boundary: |
UD1K--UD1L:varicos.--C.holzapfeli [05,35, 375.1 million years
|
| Upper Boundary: |
UD1L--UD2A:(frechi Zone base) [06,10], 374.5 million years
|