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TaxNo: 3087Eothalassoceras inexpectans+
Suborder: Goniatitina
Superfamily: Thalassoceratoidea
Family: Thalassoceratidae
Subfamily: Thalassoceratinae
Genus: Eothalassoceras
Species: inexpectans+
Qualifier: ss
Author: Miller & Owen 1937,p.418
Lower Boundary: Moscovian--Kasimovian [MOS--KAS], 306.5 million years
Upper Boundary: U Missourian--Virgilian [MIS--VIR], 305 million years