Abstract
Abstract The Coastal Belt of the Franciscan Complex in northern California is now known to contain strata of Early Cretaceous to Eocene age, with the majority of over one hundred samples dated yielding early Tertiary palynomorphs. A single sample collected southwest of Ukiah, Mendocino County, California, has yielded an interesting assemblage of dinoflagellates which was not previously known from the Coastal Belt. The occurrence of several diagnostic species indicates a Danian age for this sample. This assemblage, consisting of some twelve species, is compared to one of Danian age described by Drugg (1967) from the Moreno Formation, Fresno County, California. Genera which the two assemblages have in common include Alisocysta Stover and Evitt 1978, Areoligera Lejeune‐Carpentier 1938, Cannosphaeropsis O. Wetzel 1933, Cyclonephelium Deflandre and Cookson 1955, Danea Morgenroth 1968, Deflandrea Eisenack 1938, and Spiniferites Mantell 1850. Five new species are herein described: Alisocysta rugolirata n. sp., A...
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