Suborder:
|
Paraceltitina
|
Superfamily:
|
Xenodiscoidea
|
Family:
|
Xenodiscidae
|
Genus:
|
Kingoceras
|
Species:
|
achurense |
Qualifier:
|
ss |
Author:
|
Zakharov 1983,p.155
|
Lower Boundary:
|
AZB base Araxoceras beds, 260.4 million years
|
Upper Boundary:
|
AZB Araxoceras--Vedioceras beds, 256 million years
|