Suborder:
|
Goniatitina
|
Superfamily:
|
Pericycloidea
|
Family:
|
Muensteroceratidae
|
Genus:
|
Xinjiangites
|
Species:
|
medius |
Qualifier:
|
ss |
Author:
|
Miller & Collinson 1951,p.472
|
Lower Boundary:
|
UMO Northwiew Shale base, 353 million years
|
Upper Boundary:
|
UMO Northwiew Shale top, 352 million years
|