New finds of the Early Tithonian genus Simoceras Zittel (Simoceratidae) from Hungary confirm the existence of a new species (Simoceras szentei n. sp.) which might be a forerunner of Simoceras biruncinatum (Quenstedt) and Simoceras admirandum Zittel. The new
species demonstrates the possibility of an evolutionary lineage from the Early Tithonian Hybonotum zone through Darwini, Semiforme and Fallauxi zones of the Mediterranean Province. The similarities between different species of Simoceras are also discussed.
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