Suborder:
|
Agoniatitina
|
Superfamily:
|
Mimoceratoidea
|
Family:
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Mimosphinctidae
|
Subfamily:
|
Anetoceratinae
|
Genus:
|
Ruanites
|
Species:
|
subtilis |
Qualifier:
|
ss |
Author:
|
Ruan 1981,p.19
|
Lower Boundary:
|
CNG Tangdin Fm. base, 406.4 million years
|
Upper Boundary:
|
CNG Tangdin Fm.--Lower Tangxiang Fm., 405.8 million years
|