Suborder:
|
Goniatitina
|
Superfamily:
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Shumarditoidea
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Family:
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Shumarditidae
|
Genus:
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Pseudaktubites
|
Species:
|
newelli |
Qualifier:
|
ss |
Author:
|
Boardman et al. 1994,p.54
|
Lower Boundary:
|
UOK Coffeyville Fm. top, 305.9 million years
|
Upper Boundary:
|
U Missourian--Virgilian [MIS--VIR], 305 million years
|