Suborder:
|
Goniatitina
|
Superfamily:
|
Thalassoceratoidea
|
Family:
|
Thalassoceratidae
|
Subfamily:
|
Thalassoceratinae
|
Genus:
|
Eothalassoceras
|
Species:
|
kingorum |
Qualifier:
|
ss |
Author:
|
Miller 1930,p.407
|
Lower Boundary:
|
UTX upper-uppermost Gaptank, 300 million years
|
Upper Boundary:
|
UTX Gaptank Fm. top, 299 million years
|