Abstract
A new species, Envekadea vranaensis Caput Mihalić, Galović & Levkov sp. nov., is described from Holocene sediments of Lake Vrana, Croatia. The new species is characterized by linear-lanceolate valves with broadly capitate apices and is 40.0–67.5 μm long and 7.5–9.0 μm wide. Based on its morphological features it is similar to E. hedinii and E . pseudocrassirostris. Also, E. vranaensis shares morphological and ultrastructural features with E . vanlandinghamii, from which it can be differentiated by the valve outline, shape of the apices, stria density and the shape of proximal raphe endings. We present stratigraphic occurrence and ecological preferences for E . vranaensis based on associated paleoecological proxies.
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