Suborder:
|
Goniatitina
|
Superfamily:
|
Shumarditoidea
|
Family:
|
Perrinitidae
|
Genus:
|
Properrinites?
|
Species:
|
karpinskyi |
Qualifier:
|
ss |
Author:
|
Tumanskaia 1949,p.64
|
Lower Boundary:
|
TAP lower--upper Bus-Ter beds, 269.3 million years
|
Upper Boundary:
|
TAP upper Bus--Ter beds top, 268 million years
|