Dispinodiscus gen. nov., a new diatom resting spore genus from the North Pacific and Norwegian Sea

Abstract

Fossil marine diatom resting spore morpho-genus Dispinodiscus gen. nov. is described using samples from DSDP Site 338 in the Norwegian Sea, Sites 436 and 438 in the northwest Pacific and from the Newport Beach Section, California. Dispinodiscus gen. nov. is characterized by having a valve with two bristles or spines near each apex. This genus includes four new taxa: D. stimulus sp. nov., D. pilusus sp. nov., D. pilusus var. montanus var. nov. and D. rugosus sp. nov.