Suborder:
|
Goniatitina
|
Superfamily:
|
Schistoceratoidea
|
Family:
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Schistoceratidae
|
Genus:
|
Paraschistoceras
|
Species:
|
postvenatum |
Qualifier:
|
ss |
Author:
|
Plummer & Scott 1937,p.246
|
Lower Boundary:
|
UTX Mineral Wells Fm. base, 306.8 million years
|
Upper Boundary:
|
UTX Mineral Wells Fm. top, 305.9 million years
|