Suborder:
|
Goniatitina
|
Superfamily:
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Goniatitoidea
|
Family:
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Sygambritidae
|
Genus:
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Sygambrites
|
Species:
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wollbriggensis+ |
Qualifier:
|
ss |
Author:
|
Korn 1988,p.138
|
Lower Boundary:
|
DER chalic.--up.Go gamma2,Emstit.novalis, 327.2 million years
|
Upper Boundary:
|
DER lowest E1--E1 alpha, 326 million years
|