Suborder:
|
Goniatitina
|
Superfamily:
|
Popanoceratoidea
|
Family:
|
Popanoceratidae
|
Genus:
|
Pamiropopanoceras |
Qualifier:
|
gy |
Author:
|
Leonova 1989,p.174
|
Valid:
|
Popanoceras Hyatt,1884 [TAX5322 ] |
Lower Boundary:
|
TAP Kochusu Fm. base, 270.6 million years
|
Upper Boundary:
|
TAP Shindyi Fm. top, 265.8 million years
|