Suborder:
|
Goniatitina
|
Superfamily:
|
Gastrioceratoidea
|
Family:
|
Homoceratidae
|
Subfamily:
|
Decoritinae |
Qualifier:
|
fs |
Author:
|
Ruzhencev & Bog. 1975,p.48
|
Lower Boundary:
|
RUS Nm2a2--Nm2b1,Reticuloc.-Bashkortoc.G, 317.2 million years
|
Upper Boundary:
|
RUS Nm2b1--Nm2b2(S.krest.--P.alpharhip.), 316.8 million years
|