The new dimitobelid belemnite from the Upper Cretaceous Seymour Island, Antarctic Peninsula

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Abstract
Dimitobelus (Dimitocamax) seymouriensis n. sp., a new subgenus and species of Dimitobelidae, a belemnite family restricted to the Cretaceous Southern Hemisphere, is described from the Campanian-Maastrichtian López de Bertodano Formation of Seymour Island, Antarctic Peninsula. The subgenus D. (Dimitocamax) n. subgen. is erected for those species of Dimitobelus possessing a regular hastate form and Actinocamax-like alveolar regions. D. (Dimitocamax) n. subgen. had a restricted stratigraphic and geographic distribution in contrast to the wider distribution of D. (Dimitobelus) Whitehouse.

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