Suborder:
|
Anarcestina
|
Superfamily:
|
Beloceratoidea
|
Family:
|
Beloceratidae
|
Genus:
|
Anabeloceras |
Qualifier:
|
gn |
Author:
|
Clarke 1897,p.
|
Valid:
|
Naplesites Yatskov,1990,p. |
Lower Boundary:
|
Givetian--Frasnian [GIV--FRS], 385.3 million years
|
Upper Boundary:
|
UD1L--UD2A:(frechi Zone base) [06,10], 374.5 million years
|