Suborder:
|
Tornoceratina
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Superfamily:
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Prionoceratoidea
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Family:
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Gattendorfiidae
|
Genus:
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Zadelsdorfia
|
Species:
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artilobata |
Qualifier:
|
ss |
Author:
|
Ruan 1995,p.417
|
Lower Boundary:
|
low.Tournais.--mid.Tournais. [Tn1--Tn2], 357.5 million years
|
Upper Boundary:
|
G.typicus--anchoralis-latus Z. base [0, 349 million years
|