Suborder:
|
Goniatitina
|
Superfamily:
|
Pericycloidea
|
Family:
|
Maxigoniatitidae
|
Genus:
|
Bollandoceras
|
Species:
|
bashatchense |
Qualifier:
|
ss |
Author:
|
Popov 1965,p.38
|
Lower Boundary:
|
KIT Dzhapryk Fm. F2--A1, 347 million years
|
Upper Boundary:
|
KIT Dzhapryk Fm. A3--A4, 345.3 million years
|