Suborder:
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Goniatitina
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Superfamily:
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Goniatitoidea
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Family:
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Goniatitidae
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Genus:
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Goniatites
|
Species:
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pseudosphaericus |
Qualifier:
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sn |
Author:
|
Brandon & Hodson 1984,p.21
|
Lower Boundary:
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DER Go beta falcatus--Go beta gracilis, 329.1 million years
|
Upper Boundary:
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DER Go beta--gamma, granos.base [P1--P2], 328.2 million years
|