Suborder:
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Goniatitina
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Superfamily:
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Dimorphoceratoidea
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Family:
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Girtyoceratidae
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Subfamily:
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Sudeticeratinae
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Genus:
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Sudeticeras |
Qualifier:
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ge |
Author:
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Patteisky 1930,p.274
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Lower Boundary:
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DER Go beta falcatus--Go beta gracilis, 329.1 million years
|
Upper Boundary:
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RUS Nm1b2--Nm1c1,Fayettevillea-Delepinoc, 324 million years
|