Suborder:
|
Goniatitina
|
Superfamily:
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Neodimorphoceratoidea
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Family:
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Ramositidae
|
Genus:
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Homoceratoides
|
Species:
|
guangxiensis |
Qualifier:
|
ss |
Author:
|
Wei 1977,p.564
|
Lower Boundary:
|
GBY H2c--R1(prereticul.--Ho.magistrorum), 317 million years
|
Upper Boundary:
|
RUS Nm2c2 top;Biling./Canc.--Bran./Gast., 313 million years
|