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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Pseudogastrioceratinae
|
Genus:
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Altudoceras
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Species:
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lijiaense |
Qualifier:
|
ss |
Author:
|
Zhao & Zheng 1977,p.239
|
Lower Boundary:
|
Kungurian/Leonardian--Roadian [KUN--ROA], 270.6 million years
|
Upper Boundary:
|
Roadian--Wordian (Murgabian) [ROA--WOR], 268 million years
|