Suborder:
|
Paraceltitina
|
Superfamily:
|
Xenodiscoidea
|
Family:
|
Xenodiscidae
|
Genus:
|
Kingoceras
|
Species:
|
kingi+ |
Qualifier:
|
ss |
Author:
|
Miller 1944,p.125
|
Lower Boundary:
|
MXC La Difunta--La Colorada beds base, 263 million years
|
Upper Boundary:
|
MXC La Colorada beds top, 258 million years
|