Suborder:
|
Goniatitina
|
Superfamily:
|
Pericycloidea
|
Family:
|
Kozhimitidae |
Qualifier:
|
fy |
Author:
|
Kuzina 1974,p.19
|
Valid:
|
Muensteroceratidae Librovich,1957,p.263 |
Lower Boundary:
|
UAR Walls Ferry Fm. base, 356 million years
|
Upper Boundary:
|
RUS Nm2b1--Nm2b2(S.krest.--P.alpharhip.), 316.8 million years
|