Suborder:
|
Goniatitina
|
Superfamily:
|
Gastrioceratoidea
|
Family:
|
Homoceratidae
|
Subfamily:
|
Homoceratinae
|
Genus:
|
Homoceras
|
Species:
|
mnemancestrale |
Qualifier:
|
ss |
Author:
|
Korn 1997,p.67
|
Lower Boundary:
|
GBY R1b--R1c (Ph.nodosum--R.reticulatum), 315.4 million years
|
Upper Boundary:
|
Kinderscoutian--Marsdenian [KIN--MRD], 315 million years
|