Suborder:
|
Goniatitina
|
Superfamily:
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Dimorphoceratoidea
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Family:
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Dimorphoceratidae
|
Subfamily:
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Glyphiolobinae
|
Genus:
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Metadimorphoceras
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Species:
|
pix |
Qualifier:
|
ss |
Author:
|
Korn 1997,p.46
|
Lower Boundary:
|
GBY H2c--R1(prereticul.--Ho.magistrorum), 317 million years
|
Upper Boundary:
|
GBY R1b--R1c (Ph.nodosum--R.reticulatum), 315.4 million years
|