Suborder:
|
Anarcestina
|
Superfamily:
|
Beloceratoidea
|
Family:
|
Gephuroceratidae
|
Subfamily:
|
Gephuroceratinae
|
Genus:
|
Clauseniceras
|
Species:
|
sahlgrundense |
Qualifier:
|
ss |
Author:
|
Matern 1931,p.72
|
Lower Boundary:
|
DER do one beta--do one gamma, 377.5 million years
|
Upper Boundary:
|
UD1K--UD1L:varicos.--C.holzapfeli [05,35, 375.1 million years
|