Suborder:
|
Goniatitina
|
Superfamily:
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Neoicoceratoidea
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Family:
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Metalegoceratidae
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Subfamily:
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Metalegoceratinae
|
Genus:
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Metalegoceras
|
Species:
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distale |
Qualifier:
|
ss |
Author:
|
Ruzhencev 1938,p.278
|
Lower Boundary:
|
Asselian--Sakmarian [ASS--SAK], 294.6 million years
|
Upper Boundary:
|
Tastubian--Sterlitamakian [TAS--STE], 290 million years
|