Suborder:
|
Goniatitina
|
Superfamily:
|
Cycloloboidea
|
Family:
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Vidrioceratidae
|
Genus:
|
Prostacheoceras
|
Species:
|
oschense |
Qualifier:
|
ss |
Author:
|
Tumanskaia 1938,p.106
|
Lower Boundary:
|
TAP Kochusu Fm. base, 270.6 million years
|
Upper Boundary:
|
TAP Shindyi Fm. top, 265.8 million years
|