Suborder:
|
Goniatitina
|
Superfamily:
|
Gastrioceratoidea
|
Family:
|
Reticuloceratidae
|
Subfamily:
|
Reticuloceratinae
|
Genus:
|
Chaerogastrioceras |
Qualifier:
|
gy |
Author:
|
Korn 1997,p.92
|
Valid:
|
Agastrioceras Schmidt,1938* TAX5653 |
Lower Boundary:
|
Yeadonian--Langsettian, Westph.A [YEA--, 313 million years
|
Upper Boundary:
|
DER Westphal.A1--Westphal.A2 [MEL--VRK], 311.5 million years
|