A new dinoflagellate species from the Upper Cretaceous of New Zealand - a morphological intermediate between three genera |
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| Authors: | Lucia Roncaglia |
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| Institution: | 1. Dipartimento di Scienze della Terra , University of Modena and Reggio Emilia , Via Università 4, I-41100, Modena, Italy;2. Geological Survey of Denmark and Greenland , Thoravej 8, DK-2400, Copenhagen NV, Denmark |
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| Abstract: | The new dinoflagellate Isabelidinium marshallii sp. nov. was encountered in the lower to middle Campanian Satyrodinium haumuriense Interval Zone and in the middle to upper Campanian Isabelidinium korojonense Interval Zone, in southern Marlborough, South Island, New Zealand. The new taxon is attributed to Isabelidinium but it also closely resembles species of Alterbidinium and Satyrodinium. Despite its close morphological affiliation to three dinoflagellate genera, I. marshallii represents a discrete population of peridinioid cysts that has a stratigraphically useful range in New Zealand. |
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| Keywords: | New Zealand Conway Siltstone dinoflagellates taxonomy Campanian Upper Cretaceous |
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