|
Suborder:
|
Goniatitina
|
|
Superfamily:
|
Cycloloboidea
|
|
Family:
|
Vidrioceratidae
|
|
Genus:
|
Vidrioceras
|
|
Species:
|
irregulare |
|
Qualifier:
|
ss |
|
Author:
|
Böse 1919,p.152
|
|
Lower Boundary:
|
UTX upper-uppermost Gaptank, 300 million years
|
|
Upper Boundary:
|
UTX Gaptank Fm. top, 299 million years
|