Results 121 to 130 of about 266 (168)

Distribution of Dinocysts in the Jurassic Rocks of Kachchh, India

Journal of the Geological Society of India, 1987
Abstract A list of dinocysts is provided for the Jhura Dome Section (Jhurio Formation of Upper Bathonian to Callovian age) and Khari Nadi Section (Middle Member of the Jhuran Formation of Lower Kimmerdgian to Tithonian age) of Kachchh. These dinocyst assemblages are compared with the assemblages of dinocysts of equivalent age described ...
exaly   +2 more sources

Dinocyst genusdiscorsia:A reinterpretation

Palynology, 1985
Abstract The dinoflagellate cyst genus Discorsia Duxbury and its type species Discorsia nanna (Davey) Duxbury are emended. The morphological reinterpretation of the genus is proposed on the basis of new material from core samples of an exploratory bore hole drilled at Puduvoyal, Tamil Nadu, southern India, as well as on re‐examination of the holotype ...
null Khowaja‐Ateequzzaman, K.P. Jain, S.B. Manum   +2 more
openaire   +1 more source

Dinocysts as a Tool for Palaeoenvironmental Reconstruction in Vitória Bay, Brazil

Radiocarbon, 2020
ABSTRACTMicropaleontological and geochemical data were applied to sediments from southeastern Brazil to study the hydrodynamics associated with the Holocene sea level rise. Sediment cores were taken around Vitória Bay, examined for dinoflagellate cysts and subjected to isotopic analysis.
Alex da Silva de Freitas, Javier Helenes Escamilla, Cintia Ferreira Barreto, Alex Cardoso Bastos, Estefan Monteiro da Fonseca, José Antônio Baptista Neto   +5 more
openaire   +1 more source

A high-resolution North Sea Eocene dinocyst zonation

Journal of the Geological Society, 1994
Abundant dinoflagellate cysts (dinocysts) from Eocene strata of the North Sea exhibit a consistent succession of events, based on the analysis of 120 wells from Quadrant 3 in the north to Quadrants 21 and 22 in the south. These events have a constant relationship with stratigraphic sequences and subsequences throughout the area.
J. BUJAK, D. MUDGE
openaire   +1 more source

Burdigalian dinocyst stratigraphyof the stratotypic area (Bordeaux, France)

Geobios, 1998
A palynological study of the Burdigalian historical stratotype and neighbouring outcrops in the Bordeaux area indicates that they span the Burdigalian and part of the Serravallian time interval. Special palynological processing techniques for crag deposits were used to successfully extract abundant and diverse dinocyst floras.
Laurent Londeix, Roger Jan Du Chêne
openaire   +1 more source

A review of certain non-tabulate Cretaceous hystrichospherid dinocysts

Review of Palaeobotany and Palynology, 1976
Abstract Species assignable to three Cretaceous non-tabulate hystrichospherid dinocysts genera, Kleithriasphaeridium, Florentinia and Silicisphaera gen. nov. are reviewed and five new species proposed: K. loffrensis, F. resex, S. buspina, S. tenera and S? torulosa. Members of these genera are basically spherical in shape, possess either a precingular
R.J Davey, J.P Verdier
exaly   +2 more sources

Dinocyst biostratigraphy of the Lower Cretaceous in North Siberia

Stratigraphy and Geological Correlation, 2007
The described scheme of the Lower Cretaceous (Berriasian-Barremian) stratigraphic subdivisions is elaborated based on palynological study of sections in the Khatanga depression, Ust-Yenisei region, Pur-Taz interfluve, and around the Ob River latitudinal segment, the North Siberia.
openaire   +1 more source

Dinocyst biostratigraphy of the Upper Cretaceous of northern Siberia

Paleontological Journal, 2006
A stratigraphic chart is developed of the Upper Cretaceous deposits of northern Siberia based on dinocysts. It covers the period from the Upper Cenomanian to the Maastrichtian, including 15 biostratigraphic units (beds with characteristic assemblages or local zones), and is correlated with the inoceram zonation.
openaire   +1 more source

Morphology, Systematics, and Stratigraphic Significance of the Dinocyst Genus Dingodinium

Paleontological Journal, 2018
New material from the Upper Kimmeridgian and Volgian of the Gorodishche section (Ulyanovsk Region, Russia) allows a more accurate definition of the tabulation formula and archeopyle morphology of the dinocyst genus Dingodinium. The partiform pattern of the antapex and morphological features of the epicyst indicate that the genus Dingodinium should be ...
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Jurassic and lower cretaceous dinocysts from Argentina: their biostratigraphic significance

Review of Palaeobotany and Palynology, 1990
Abstract Dinocyst assemblages from the Cura Niyeu Formation (Bajocian), the Lotena Formation (middle to late Callovian), the lower Vaca Muerta Formation (early to middle Tithonian), the Picun Leufu Formation (late middle to late Tithonian), the upper Vaca Muerta Formation (Berriasian) and the Agrio Formation (Hauterivian to Barremian) of the Neuqeun ...
M.E. Quattrocchio, W. Volkheimer
openaire   +1 more source