Suborder:
|
Goniatitina
|
Superfamily:
|
Popanoceratoidea
|
Family:
|
Xinjiangoceratidae
|
Genus:
|
Xinjiangoceras
|
Species:
|
discoides |
Qualifier:
|
sy |
Author:
|
Wang 1983,p.532
|
Valid:
|
Procarnites kokeni (Arthaber) TAX6420 |
Lower Boundary:
|
Permian--Triassic (Induan base), 251 million years
|
Upper Boundary:
|
Olenekian--Anisian (top Spathian), 245 million years
|