Descriptions of New Fossil Dinoflagellates from the Late Quaternary of the Black Sea

Wall, David; Dale, Barrie; Harada, Kenichi

doi:10.2307/1484962

Cited by 153 publications

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“…Organic-walled dinoflagellate cysts (=dinocysts) were also observed and counted. The dinocyst assemblages are remarkably similar to those described by Wall et al (1973) from the Black Sea late Quaternary sediments, but there are also several new taxa. These include the species Caspidinium rugosum and Impagidinium caspienense, which occur in several top-samples of pilot-cores and subsurface sediment samples from different regions of the Caspian Sea.…”

Section: Introductionsupporting

confidence: 75%

“…This species differs from Impagidinium paradoxum in its lack of sulcal paratabulation. Comments: Specimens observed in the studied surface sediment samples are morphologically similar to those described in Wall et al (1973). Process types, as documented by Wall et al (1973) and Lewis and Hallett (1997), varied from small with acuminate tips to medium long processes with bulbous or roundly conical tips.…”

Section: Descriptionsupporting

confidence: 63%

“…Comments: Specimens observed in the studied surface sediment samples are morphologically similar to those described in Wall et al (1973). Process types, as documented by Wall et al (1973) and Lewis and Hallett (1997), varied from small with acuminate tips to medium long processes with bulbous or roundly conical tips. Some specimens devoid of processes show a remarkable ornamentation, with a reticulate pattern instead of processes (Plate 3: 6-7) in the ventral region.…”

Section: Descriptionsupporting

confidence: 63%

“…Comments: The Caspian Sea specimens show great variability in the ambitus and processes as noted by Wall and Dale in Wall et al (1973). Three morphotypes were observed based on the absence or presence of membranous flanges and the morphology of the cyst body (Fig.…”

Section: Genus Spiniferites Mantell 1850 Emend Sarjeant 1970mentioning

confidence: 99%

“…Following the original work of Wall et al (1973), several papers have focussed on Late Quaternary organic-walled dinoflagellate cysts from eastern Mediterranean regions (e.g. Atanassova, 1995;Bozilova et al, 1997;Mudie et al, 2001Mudie et al, , 2002Rochon et al, 2002).…”

Section: Introductionmentioning

confidence: 99%

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New organic-walled dinoflagellate cysts from recent sediments of Central Asian seas

Marret

Leroy

Chalié

et al. 2004

Review of Palaeobotany and Palynology

106

119

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Recent to sub-recent sediments from the Caspian Sea, the Kara-Bogaz-Gol Bay, the Enseli lake and the Aral Sea contain the new organic-walled dinoflagellate cysts Caspidinium, Caspidinium rugosum and Impagidinium caspienense. Caspidinium rugosum has S-type paratabulation, dextral torsion and low relief intratabular ornamentation. Impagidinium caspienense has low intratabular suturo-cavate relief, parasutural septa irregular in height and a high septum at the junction of paraplate 1'''' and the sulcus.The accompanying species consist of Spiniferites cruciformis, Lingulodinium machaerophorum, Pyxidinopsis psilata, cysts of Pentapharsodinium dalei and Brigantedinium spp. Spiniferites cruciformis varies from specimens with a cruciform body with a well-developed postero-lateral membranous flange to specimens with a pear-shaped body, reduced processes and no flange. Sea-surface data from these Central Asian seas suggests that the two new taxa Caspidinium rugosum and Impagidinium caspienense are probably related to low salinity conditions (12-13).

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Section: Introductionsupporting

confidence: 75%

Section: Descriptionsupporting

confidence: 63%

Section: Descriptionsupporting

confidence: 63%

Section: Genus Spiniferites Mantell 1850 Emend Sarjeant 1970mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

New organic-walled dinoflagellate cysts from recent sediments of Central Asian seas

Marret

Leroy

Chalié

et al. 2004

Review of Palaeobotany and Palynology

106

119

View full text Add to dashboard Cite

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Palynological evidence for late Holocene environmental change on the Gimhae fluvial plain, Southern Korean peninsula: Reconstructing the rise and fall of Golden Crown Gaya State

Saito

2003

Geoarchaeology

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This paper presents the results of detailed studies of palynomorphs recovered from two cores collected near the Yeanri burial mound on the Gimhae fluvial plain. Two local pollen zones were recognized on the basis of variations in the palynofloral assemblage: a lower Pollen Zone I, dominated by a Pinus‐Quercus assemblage, and an upper Pollen Zone II, dominated by a Pinus‐Quercus‐Gramineae assemblage. The palynological and molluscan analyses indicate that the depositional environments changed from a lower intertidal flat of a shallow bay environment to an upper intertidal flat in a shallow bay (before 1280 ± 110 14C yr B.P.), and finally to a fluvial plain similar to that of today. This environmental change may have resulted from uplift along the Yangsan Fault. Afterward, the exposed area was modified by human activities, as indicated by a sudden increase in grassland herbaceous pollen grains. The loss of this bay likely had a dramatic effect on the Golden Crown Gaya State (3rd–7th centuries A.D.), which used it as a major port for regional trade, and may explain why it eventually merged with the Shilla State. © 2003 Wiley Periodicals, Inc.

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Recruitment of Planktonic Dinoflagellates: Importance of Benthic Resting Stages and Resuspension Events

Nehring¹

1996

Intl Review of Hydrobiology

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Many factors have k e n put forward to account for the development of nuisance phytoplankton blooms in coastal zones. Usually hydrological factors as temperature or salinity stratification and adequate nutrient and trace metal availability are held responsible for the phenomenon. The most frequent causative organisms for nuisance blooms are dinoflagellates, many of which have a dormant stage (resting cyst) in their life cycle. The role of the complex life-strategies of these forms in initiating bloom formation is thelfocus of this study. Special attention is given to 25 different dinoflagellate resting cyst types isolated from recent German North Sea and Baltic Sea sediments, and their germination frequency under different environmental conditions. Also, the role of cyst resuspension in relationship to the timing, persistence and recurrence of dinoflagellate blooms is extensive discussed.

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Descriptions of New Fossil Dinoflagellates from the Late Quaternary of the Black Sea

Cited by 153 publications

References 0 publications

New organic-walled dinoflagellate cysts from recent sediments of Central Asian seas

New organic-walled dinoflagellate cysts from recent sediments of Central Asian seas

Palynological evidence for late Holocene environmental change on the Gimhae fluvial plain, Southern Korean peninsula: Reconstructing the rise and fall of Golden Crown Gaya State

Recruitment of Planktonic Dinoflagellates: Importance of Benthic Resting Stages and Resuspension Events

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