|
Suborder:
|
Goniatitina
|
|
Superfamily:
|
Dimorphoceratoidea
|
|
Family:
|
Anthracoceratidae
|
|
Genus:
|
Anthracoceras
|
|
Species:
|
discoides |
|
Qualifier:
|
ss |
|
Author:
|
Bisat 1934,p.115
|
|
Lower Boundary:
|
Pendleian--Arnsbergian [PND--ARN], 324 million years
|
|
Upper Boundary:
|
Arnsbergian--Chokierian [ARN--CHO], 319 million years
|