Suborder:
|
Goniatitina
|
Superfamily:
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Neoicoceratoidea
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Family:
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Paragastrioceratidae
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Subfamily:
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Paragastrioceratinae
|
Genus:
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Uraloceras
|
Species:
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subinvolutum |
Qualifier:
|
ss |
Author:
|
Bogoslovskaya & Shkolin 1998,p.250
|
Lower Boundary:
|
Sakmarian--Artinskian [SAK--ART], 284.4 million years
|
Upper Boundary:
|
Artinskian/Baigendzh--Kungurian/Leonardi, 275.6 million years
|