Suborder:
|
Goniatitina
|
Superfamily:
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Neoicoceratoidea
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Family:
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Metalegoceratidae
|
Subfamily:
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Metalegoceratinae
|
Genus:
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Bransonoceras
|
Species:
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bakeri+ |
Qualifier:
|
ss |
Author:
|
Miller & Parizek 1948,p.354
|
Lower Boundary:
|
UTX Lower Hueco--Upper Hueco Lst., 284.4 million years
|
Upper Boundary:
|
UTX Bone Spring Fm. top, 268 million years
|