Suborder:
|
Goniatitina
|
Superfamily:
|
Cycloloboidea
|
Family:
|
Cyclolobidae
|
Subfamily:
|
Cyclolobinae
|
Genus:
|
Cyclolobus
|
Species:
|
hoshanensis |
Qualifier:
|
sn |
Author:
|
Sun 1939,p.43
|
Lower Boundary:
|
AZB Bernhardites--Paratirolites beds, 252 million years
|
Upper Boundary:
|
AZB Paratirolites--Pleuronodoceras beds, 251.5 million years
|