Suborder:
|
Goniatitina
|
Superfamily:
|
Neoicoceratoidea
|
Family:
|
Paragastrioceratidae
|
Subfamily:
|
Pseudogastrioceratinae
|
Genus:
|
Altudoceras
|
Species:
|
jianshiense |
Qualifier:
|
sn |
Author:
|
Xu 1977,p.568
|
Lower Boundary:
|
Kungurian/Leonardian--Roadian [KUN--ROA], 270.6 million years
|
Upper Boundary:
|
Capitanian--Wuchiapingian [CAP--DZH], 260.4 million years
|