Suborder:
|
Anarcestina
|
Superfamily:
|
Beloceratoidea
|
Family:
|
Gephuroceratidae
|
Subfamily:
|
Gephuroceratinae
|
Genus:
|
Delphiceras
|
Species:
|
unduloconstrictus+ |
Qualifier:
|
ss |
Author:
|
Miller 1938,p.123
|
Lower Boundary:
|
UD1I--UD1J:tripart.--N.paradoxum [04,20], 377.5 million years
|
Upper Boundary:
|
UD1J--UD1K:paradox.--A.varicosum [04,85], 376.9 million years
|