Suborder:
|
Anarcestina
|
Superfamily:
|
Triainoceratoidea
|
Family:
|
Triainoceratidae
|
Genus:
|
Altayites |
Qualifier:
|
sy |
Author:
|
Korn 2002,p.148
|
Valid:
|
Sandbergeroceras Hyatt TAX5754 |
Lower Boundary:
|
mid.--up.varcus Zone [17,00], 389 million years
|
Upper Boundary:
|
UD1L--UD2A:(frechi Zone base) [06,10], 374.5 million years
|