Suborder:
|
Goniatitina
|
Superfamily:
|
Cycloloboidea
|
Family:
|
Vidrioceratidae
|
Genus:
|
Stacheoceras
|
Species:
|
timorense forma eta |
Qualifier:
|
ss |
Author:
|
Haniel 1915,p.99
|
Lower Boundary:
|
RIT Amarassi beds base, 260.4 million years
|
Upper Boundary:
|
RIT Amarassi beds top, 258 million years
|