Suborder:
|
Goniatitina
|
Superfamily:
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Gastrioceratoidea
|
Family:
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Glaphyritidae
|
Subfamily:
|
Glaphyritinae |
Qualifier:
|
fs |
Author:
|
Ruzhencev & Bog. 1971,p.285
|
Lower Boundary:
|
UAR basal--lower shale of Fayetteville, 327 million years
|
Upper Boundary:
|
Sakmarian--Artinskian [SAK--ART], 284.4 million years
|