Suborder:
|
Otoceratina
|
Family:
|
Araxoceratidae
|
Genus:
|
Sanyangites |
Qualifier:
|
gy |
Author:
|
Zhao et al. 1978,p.104
|
Valid:
|
Araxoceras Ruzhentsev [TAX5134 ] |
Lower Boundary:
|
Araxoc./Konglingites--Sanyangites, 256 million years
|
Upper Boundary:
|
Sanyangites--Iranites/Phisonites, 253.8 million years
|