TaxNo: 5165Family Etoushanoceratidae
| Suborder: |
Otoceratina
|
| Family: | Etoushanoceratidae |
| Qualifier: | fa |
| Author: |
Yang & Xiong 1990,p.195
|
| Lower Boundary: |
Anderssonoc./Prototoc.--Araxoc./Kongl., 258 million years
|
| Upper Boundary: |
Araxoc./Konglingites--Sanyangites, 256 million years
|