Suborder:
|
Goniatitina
|
Superfamily:
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Shumarditoidea
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Family:
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Perrinitidae
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Genus:
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Metaperrinites
|
Species:
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schucherti |
Qualifier:
|
ss |
Author:
|
Tumanskaia 1949,p.60
|
Lower Boundary:
|
TAP Kochusu Fm. base, 270.6 million years
|
Upper Boundary:
|
Kochusu Fm., upper, middle--upper part, 268.5 million years
|