Suborder:
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Goniatitina
|
Superfamily:
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Goniatitoidea
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Family:
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Sygambritidae
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Genus:
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Sygambrites
|
Species:
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stenolobus+* |
Qualifier:
|
ss |
Author:
|
Liang & Wang 1991,p.96
|
Lower Boundary:
|
DER Go alpha 3--Go alpha 4 [13.00], 332 million years
|
Upper Boundary:
|
RUS Nm1a1 base, Hypergon.-Ferganoc. GZ, 327.8 million years
|