Suborder:
|
Agoniatitina
|
Superfamily:
|
Mimoceratoidea
|
Family:
|
Teicherticeratidae
|
Subfamily:
|
Teicherticeratinae
|
Genus:
|
Teicherticeras
|
Species:
|
ilanense |
Qualifier:
|
sn |
Author:
|
Shen 1975,p.97
|
Lower Boundary:
|
CNG Tangdin Fm. base, 406.4 million years
|
Upper Boundary:
|
CNG Tangdin Fm.--Lower Tangxiang Fm., 405.8 million years
|