Suborder:
|
Tornoceratina
|
Superfamily:
|
Tornoceratoidea
|
Family:
|
Tornoceratidae
|
Subfamily:
|
Parodiceratinae
|
Genus:
|
Trevoneites
|
Species:
|
westfalicum |
Qualifier:
|
ss |
Author:
|
Holzapfel 1895,p.104
|
Lower Boundary:
|
ensensis--hemiansatus Zone [08,20], 391.8 million years
|
Upper Boundary:
|
mid.--up.varcus Zone [17,00], 389 million years
|