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TaxNo: 5510Promarathonites sp.nov.
Suborder: Goniatitina
Superfamily: Marathonitoidea
Family: Marathonitidae
Genus: Promarathonites
Species: sp.nov.
Qualifier: of
Author: Boardman et al. 1994,pl.
Lower Boundary: Moscovian--Kasimovian [MOS--KAS], 306.5 million years
Upper Boundary: U Missourian--Virgilian [MIS--VIR], 305 million years