Suborder:
|
Goniatitina
|
Superfamily:
|
Marathonitoidea
|
Family:
|
Marathonitidae
|
Genus:
|
Marathonites
|
Species:
|
sp.nov. |
Qualifier:
|
of |
Author:
|
Boardman et al. 1994,pl.2
|
Lower Boundary:
|
RUS Zhigulian--Orenburgian [Ruzhentsev], 305 million years
|
Upper Boundary:
|
Gzhelian--Asselian [C--P], 299 million years
|