The Jurassic flora of Andøya, northern Norway

Manum, Svein B.; Bose, Mahendra N.; Vigran, Jorunn Os

doi:10.1016/0034-6667(91)90026-y

Cited by 47 publications

(31 citation statements)

References 12 publications

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“…Jurassic ecological interpretations are provided by e.g. Alvin (1982), Balme (1995), Filatoff (1975), Francis (1984), Manum et al (1991), Mohr (1989), Retallack (1997), Reyre (1980), Skog & Hill (1992), Vakhrameev (1991), Van der Burgh & Van Konijnenburg-Van Cittert (1984), Van KonijnenburgVan Cittert & Van der Burgh (1989Burgh ( , 1996, Wesley (1973), Yaroshenko (1985), and unpublished information available at the Laboratory of Palaeobotany and Palynology.…”

Section: Ecologies Of Dominant Jurassic -Early Cretaceous Plantsmentioning

confidence: 99%

A sporomorph ecogroup model for the Northwest European Jurassic - Lower Cretaceousi: concepts and framework

Abbink¹,

Cittert²,

Visscher³

2004

Netherlands Journal of Geosciences

154

191

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Based on recent vegetation distribution and an integration of macropalaeobotanical and palynological information, a palaeocommunity model is explored that may permit detailed interpretations of quantitative sporomorph distribution patterns in the Jurassic and Early Cretaceous of NW-Europe in terms of changes in palaeoenvironment (sea-level, climate). The conceptual model is based on the recognition of Sporomorph Ecogroups (SEGs) that reflect broad co-existing plant communities, viz. upland, lowland, river, pioneer, coastal, and tidally-influenced SEGs. In successive palynological assemblages, shifts in the relative abundance of SEGs are thought to be indicators of sea-level changes. Climatic changes may be recognised through significant shifts within the quantitative composition of individual SEGs.

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Section: Ecologies Of Dominant Jurassic -Early Cretaceous Plantsmentioning

confidence: 99%

A sporomorph ecogroup model for the Northwest European Jurassic - Lower Cretaceousi: concepts and framework

Abbink¹,

Cittert²,

Visscher³

2004

Netherlands Journal of Geosciences

154

191

View full text Add to dashboard Cite

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“…The upper part of the topmost member in the Ramså Formation, the Bonteigen Member, shows a transition from fluvial sedimentation to high-energy beach and shallow marine deposits (Manum et al 1991b;Bjorøy et al 1979). The basal part of the Bonteigen Member yields a well-studied macroflora.…”

Section: Andøyamentioning

confidence: 99%

“…The two basal members are mainly composed of sandstones with coal layers and have been interpreted as being deposited in a braided river system, although there is evidence for minor marine incursions in the Hestberget Member based on the presence of the marine palynomorphs Michrystridium sp. and Nannoceratopsis gracilis at some levels (Manum et al 1991b).…”

Section: Andøyamentioning

confidence: 99%

“…Michelsen et al 2003), Norway, i.e. Andøya (Dalland 1975;Manum et al 1991b), the East Greenland rift Basins, i.e. Jameson Land Basin (Koppelhus & Hansen 2003;Surlyk 2003) and Svalbard, i.e.…”

Section: Swedenmentioning

confidence: 99%

“…Based on the presence of N. gracilis, the Hestberget Member is dated as Bajocian or older, whereas the Kullgrøfta Member lacks age-diagnostic dinoflagellates (Manum et al 1991b). Nevertheless, investigations of miospore assemblages from the Kullgrøfta and Hestberget Members revealed rich palynofloral assemblages (Birkelund et al 1978;Aasheim 1985), similar to those described from Lower -Middle Jurassic strata of East Greenland and Bornholm (Pedersen & Lund 1980;Hoelstad 1985), typically with abundant spores and non-saccate gymnosperm pollen e.g.…”

Section: Andøyamentioning

confidence: 99%

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Onshore Jurassic of Scandinavia and related areas

Vajda

Wigforss-Lange

2009

GFF

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Jurassic strata are extensively distributed in offshore areas of Scandinavia, but onshore exposures are mostly restricted to southern Sweden (Skåne), the Danish island of Bornholm, East Greenland, northern Norway (Andøya) and Svalbard. The latest Triassic and Jurassic saw active tectonism in Scandinavia associated with the break-up of Pangaea and rifting in the North Atlantic region and the North Sea. Rifting and the gradual rise in sea level controlled the structural and sedimentological architecture of Scandinavian basins throughout the Jurassic. The Upper Triassic is represented by continental red beds (claystones and arkosic conglomerates) indicative of arid conditions (until the Norian) and by coal measures characteristic of humid conditions (in the Rhaetian). Early Jurassic sedimentation in the region was dominated by fluvial-estuarine systems. Basin subsidence combined with the supply of huge volumes of sediments led to the accumulation of thick sand units on vast coastal plains in the Early and Middle Jurassic. During the Late Jurassic, transgressions led to deposition of extensive marine mud, although sandstones are locally preserved. Paralic depositional environments prevailed during the Late Jurassic and into the Early Cretaceous in southern Scandinavia. Scandinavia hosts a rich Jurassic palaeontological record including fossil plants, sharks, dinosaur footprints, ammonites, belemnites, ichthyosaurs and pliosaurs. Miospores provide the primary tool for biostratigraphic subdivision and correlation of the continental Jurassic sediments, whereas ammonites, dinoflagellates and foraminifera are the main groups employed for marine biostratigraphy. However, much work remains to be completed to achieve a highly resolved zonation scheme that integrates both marine and terrestrial indices.

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A new species of Mirovia (Coniferales, Miroviaceae) from the Lower Cretaceous of the Iberian Ranges (Spain)

Gómez¹

2002

Cretaceous Research

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The Jurassic flora of Andøya, northern Norway

Cited by 47 publications

References 12 publications

A sporomorph ecogroup model for the Northwest European Jurassic - Lower Cretaceousi: concepts and framework

A sporomorph ecogroup model for the Northwest European Jurassic - Lower Cretaceousi: concepts and framework

Onshore Jurassic of Scandinavia and related areas

A new species of Mirovia (Coniferales, Miroviaceae) from the Lower Cretaceous of the Iberian Ranges (Spain)

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