Structure and encystment in some fossil cavate dinoflagellate cysts
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چکیده
منابع مشابه
Biogeography of dinoflagellate cysts in northwest Atlantic estuaries
Few biogeographic studies of dinoflagellate cysts include the near-shore estuarine environment. We determine the effect of estuary type, biogeography, and water quality on the spatial distribution of organic-walled dinoflagellate cysts from the Northeast USA (Maine to Delaware) and Canada (Prince Edward Island). A total of 69 surface sediment samples were collected from 27 estuaries, from sites...
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Rhaetian strata from the Nayband Formation of the Tabas block, East- Central Iran, were studied palynologically. The materialexamined contained moderately diverse and well-preserved dinoflagellate cyst assemblages which lead to the identification ofRhaetogonyaulax rhaetica Zone. The assigned age of this dinozone (Rhaetian) is justified by plant fossils such as Equisetitesarenaceus, Scytophyllum...
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The Upper Cretaceous strata were studied in a composite stratigraphic section named here Padeha-Baghak section in east of Koppeh-Dagh basin, north east of Iran. In this study, palynostratigraphy, palynofacies and depositional environment history of Abderaz Formation were integrated with sequence stratigraphy. Determination of sea level history and sequence units of the Abderaz Formation using s...
متن کاملThe semi-automated classification of sedimentary organic matter and dinoflagellate cysts in palynological preparations
Palynological material is the entire acid-resistant microscopic organic matter recovered from a sediment or sedimentary rock. This can be subdivided into three broad classes: palynomorphs (i.e., dinoflagellate cysts, spores, pollen, acritarchs, foraminiferal linings, fungal material and algae), palynodebris (i.e., membranous, brown and opaque material) and amorphous OM. The research articulated...
متن کاملDifferences in the chemical composition of organic-walled dinoflagellate resting cysts from phototrophic and heterotrophic dinoflagellates.
Dinoflagellates constitute a large proportion of the planktonic biomass from marine to freshwater environments. Some species produce a preservable organic-walled resting cyst (dinocyst) during the sexual phase of their life cycle that is an important link between the organisms, the environment in which their parent motile theca grew, and the sedimentary record. Despite their abundance and wides...
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ژورنال
عنوان ژورنال: Journal of Micropalaeontology
سال: 1984
ISSN: 2041-4978
DOI: 10.1144/jm.3.2.53