Suborder:
|
Tornoceratina
|
Superfamily:
|
Prionoceratoidea
|
Family:
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Gattendorfiidae
|
Genus:
|
Gattendorfia
|
Species:
|
ventroplana |
Qualifier:
|
sy |
Author:
|
Schindewolf 1924,p.105
|
Valid:
|
Gattendorfia subinvoluta Münster 1839 |
Lower Boundary:
|
Devonian--Carboniferous Boundary [DCB], 359.2 million years
|
Upper Boundary:
|
low.Tournais.--mid.Tournais. [Tn1--Tn2], 357.5 million years
|