Suborder:
|
Tornoceratina
|
Superfamily:
|
Prionoceratoidea
|
Family:
|
Prionoceratidae
|
Subfamily:
|
Prionoceratinae
|
Genus:
|
Rectimitoceras
|
Species:
|
alternum |
Qualifier:
|
sy |
Author:
|
Korn 1994,p.16
|
Valid:
|
Rectimitoceras alternatum Korn,1992,p.31 |
Lower Boundary:
|
UD5C--UD6A1: Sphenoclym.brevispina base, 364 million years
|
Upper Boundary:
|
UD6B--UD6C1 Kamptoclym. endogona base, 362.4 million years
|