Genetic analysis of the homothallic dinoflagellate, Crypthecodinium cohnii, using 16 nonallelic motility mutants, revealed (1) virtual absence of second division segregation and (2) independent assortment of all genes except for: (a) three cases of cross specific, "false" linkage and (b) one possible case of linkage with a high percentage of crossing over. The probability that at least two of t...

Stratigraphic cluster analysis using aquatic palynomorphs preserved in the core sediments revealed a rapid eutrophication due to anthropogenic activities from mid 1960s Beppu Bay, East Kyushu, Japan. These assemblages were divided into three major units: BP-I, BP-II and BP-III, also only dinoflagellate cyst following four units Bay: BP-A, BP-B, BP-C, BP-D. Unit boundaries based on cysts differe...

This work introduces one of the first palynostatigraphic study conducted on formations from Eocene and overlying lowermost Miocene successions (Cunga Quifangondo formations) exposed in Onshore Kwanza Basin, Angola. To improve Cunga age, new biostratigraphic correlations palaeoenvironmental interpretations based qualitative quantitative analyses organic walled dinoflagellate cysts sedimentary ro...

The first high resolution record of dinoflagellate cysts ∼110–155 kyr over Termination II and the Last Interglacial in Santa Barbara Basin, California from ODP Hole 893A details a complex paleoceanographic history. Variation cyst relative abundances, concentrations, diversity reflects climatic ocean circulation changes, assemblages are used to make qualitative reconstructions sea surface temper...