Suborder:
|
Goniatitina
|
Superfamily:
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Marathonitoidea
|
Family:
|
Marathonitidae
|
Genus:
|
Marathonites
|
Species:
|
sp.nov. |
Qualifier:
|
of |
Author:
|
Kullmann & Ramovs 1980,p.199
|
Lower Boundary:
|
Gzhelian--Asselian [C--P], 299 million years
|
Upper Boundary:
|
Artinskian/Baigendzh--Kungurian/Leonardi, 275.6 million years
|