Suborder:
|
Tornoceratina
|
Superfamily:
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Praeglyphioceratoidea
|
Family:
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Sporadoceratidae
|
Subfamily:
|
Sporadoceratinae
|
Genus:
|
Spirosporadoceras |
Qualifier:
|
ge |
Author:
|
Becker 2010,p.152
|
Lower Boundary:
|
UD6C2--UD6D1:parad.--Wo.sphaeroi.[18,90], 361.6 million years
|
Upper Boundary:
|
UD6D1--UD6D2:Wo.sphaer.--Epiwo.applanata, 360.8 million years
|