Suborder:
|
Goniatitina
|
Superfamily:
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Shumarditoidea
|
Family:
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Perrinitidae
|
Genus:
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Metaperrinites
|
Species:
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sp. |
Qualifier:
|
in |
Author:
|
div. authors
|
Lower Boundary:
|
TAP Kochusu Fm. base, 270.6 million years
|
Upper Boundary:
|
TAP Kochusu Fm.--Shindyi Fm., 268 million years
|