Suborder:
|
Goniatitina
|
Superfamily:
|
Shumarditoidea
|
Family:
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Somoholitidae
|
Genus:
|
Somoholites
|
Species:
|
shikhanensis |
Qualifier:
|
ss |
Author:
|
Ruzhencev 1938,p.282
|
Lower Boundary:
|
Asselian--Sakmarian [ASS--SAK], 294.6 million years
|
Upper Boundary:
|
Tastubian--Sterlitamakian [TAS--STE], 290 million years
|