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TaxNo: 3763Rotodiscoceras sp.
Suborder: Paraceltitina
Superfamily: Xenodiscoidea
Family: Pleuronodoceratidae
Genus: Rotodiscoceras
Species: sp.
Qualifier: in
Author: div. authors
Lower Boundary: Pseudotir./Pleuron.--Rotodiscoceras beds, 252 million years
Upper Boundary: Rotodiscoceras top, 251.5 million years