Rigaudella, a new Dinoflagellate-Cyst genus

Below, Raimond

doi:10.1127/njgpm/1982/1982/137

njgpm

1982

DOI: 10.1127/njgpm/1982/1982/137

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Rigaudella, a new Dinoflagellate-Cyst genus

Raimond Below¹

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1985

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Cited by 8 publications

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“…It appears to be related to the spined Corollina/Classopollis species which have their maximum development in the topmost Jurassic. Remarks:Below (1982) provided sound arguments against the generally used combination of the genus Adnatosphaeridium of which the Tertiary typespecies is lenticular shaped, and the more spherical Jurassic species aemulum. Here a conventional approach is followed.…”

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confidence: 99%

Palynology of the marine Jurassic formations in the Vardekh1ft ravine, Jameson Land, East Greenland

Lund¹,

Pedersen

1985

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The microfloras of the marine Neill Klinter, Vardekl0ft, and lower Hareelv Formations have been investigated from exposures in the Vardekl0ft ravine at Hurry Inlet, eastern Jameson Land. The samples have yielded abundant spores and pollen as well as dinoflagellate cysts. Based on the occurrence of spores and pollen four microfloral assemblages (A-D) have been established. Biostratigraphic correlations based on the dinoflagellate occurrences as well, have been proposed by comparison with microfloras of Europe. Assemblage A and B of the Neill Klinter Formation have been correlated to (Late) Pliensbachian to Early Toarcian. The typical assemblage C microfloras are restricted to the Vardekl0ft Formation and is correlated to the Middle-Late Bajocian at the base of the formation and to the (Early) Callovian at the top. The assemblage D has been recovered from the lower Hareelv Formation. Based on the dinoflagellate cysts the deepest samples available from this formation may be correlated to the Oxfordian cordatum(-plicatilis) Zone while the upper part of the section in Vardekl0ft is referred to the Early Kimmeridgian. The composition of the microfloras indicates marine to brackish palaeoenvironments with considerable variations in the terrestrial derived palynomorph groups. Comparison with age equivalent microfloras of Svalbard and And0ya, Northern Norway, and the Middle Europe indicates the stratigraphical distribution of some spores to be palaeolatitudinally controlled.

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mentioning

confidence: 99%

Palynology of the marine Jurassic formations in the Vardekh1ft ravine, Jameson Land, East Greenland

Lund¹,

Pedersen

1985

bgsd

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Jurassic palynology from a borehole in the Champagne area, France-correlation of the lower Callovian-middle Oxfordian using sequence stratigraphy

Fauconnier

1995

Review of Palaeobotany and Palynology

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The cored borehole A901, drilled by the National Agency for the Management of Radioactive Waste at Montcornet, in Champagne, on the northeastern border of the Paris Basin, provided a continuous section from the Hettangian to the lower Kimmeridgian. Samples taken at regular intervals yielded marker dinoflagellate cysts of the northwest European domain that have been correlated with ammonite zones.The earliest dinoflagellate species appear in the upper Sinemurian (976 m, Obtusum zone), whereas the lowest intersected beds contain abundant conifer pollen and pteridophyte spores. The microplankton becomes diversified along the hole, in particular in the Callovian-Oxfordian beds; the Bathonian gravelly oolitic limestones are unfavourable for preservation of microflora.The sequence-stratigraphical interpretation was based on lithological, sedimentological and biostratigraphical information and seismic profiles. A semi-quantitative estimation of the microplankton content and of the number of species per sample enabled identification of the main transgressive-regressive cycles and condensed sequences in the lower Callovian to middle Oxfordian.

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The taxonomy of selected marine microplankton from the Middle and Upper Jurassic (Callovian–Kimmeridgian) of the North West Shelf, Australia

Vitacca

Sinclair

Mantle

et al. 2022

Review of Palaeobotany and Palynology

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Rigaudella, a new Dinoflagellate-Cyst genus

Cited by 8 publications

References 0 publications

Palynology of the marine Jurassic formations in the Vardekh1ft ravine, Jameson Land, East Greenland

Palynology of the marine Jurassic formations in the Vardekh1ft ravine, Jameson Land, East Greenland

Jurassic palynology from a borehole in the Champagne area, France-correlation of the lower Callovian-middle Oxfordian using sequence stratigraphy

The taxonomy of selected marine microplankton from the Middle and Upper Jurassic (Callovian–Kimmeridgian) of the North West Shelf, Australia

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