Suborder:
|
Goniatitina
|
Superfamily:
|
Cycloloboidea
|
Family:
|
Vidrioceratidae |
Qualifier:
|
fa |
Author:
|
Plummer & Scott 1937,p.129
|
Lower Boundary:
|
RUS Miachkovian--Zhigulian [MYA--ZHI], 306.5 million years
|
Upper Boundary:
|
Permian--Triassic (Induan base), 251 million years
|