Suborder:
|
Tornoceratina
|
Superfamily:
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Prionoceratoidea
|
Family:
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Gattendorfiidae
|
Genus:
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Gattendorfia
|
Species:
|
uralica |
Qualifier:
|
ss |
Author:
|
Librovitch 1997,p.31
|
Lower Boundary:
|
low.Tournais.--mid.Tournais. [Tn1--Tn2], 357.5 million years
|
Upper Boundary:
|
mid.Tournais.--up.Tournaisian [Tn2--Tn3], 353 million years
|