Novel double wing morphology revealed in a South African ovuliferous glossopterid fructification: Bifariala intermittens (Plumstead 1958) comb. nov.

Prevec, Rose; McLoughlin, Stephen; Bamford, Marion K.

doi:10.1016/j.revpalbo.2008.01.001

Cited by 25 publications

(23 citation statements)

References 17 publications

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“…Detailed palaeobotanical studies based on the well-preserved plant fossils date back to the early 20 th century (Etheridge, 1901;Leslie, 1903). Subsequent work was done by the likes of Plumstead (1952Plumstead ( , 1956Plumstead ( , 1957Plumstead ( , 1958Plumstead ( , 1969, Lacy et al (1974), Kovács-Endrödy (1976, Anderson and Anderson (1985), Rayner and Coventry (1985), Adendorff (2005), Bordy and Prevec (2008), Claasen (2008), Prevec et al (2008Prevec et al ( , 2009Prevec et al ( , 2010 and Prevec (2011).…”

Section: Vryheid Formationmentioning

confidence: 99%

South Africa's coalfields — A 2014 perspective

Hancox

Götz

2014

International Journal of Coal Geology

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Highlights• South Africa's Coalfields are presented.• The role of Gondwanan coals as palaeoclimate archives is stated.• Future research fields include palynology, sequence stratigraphy, basin fill. AbstractFor well over a century and a half coal has played a vital role in South Africa's economy and currently bituminous coal is the primary energy source for domestic electricity generation, as well as being the feedstock for the production of a substantial percentage of the country's liquid fuels. It furthermore provides a considerable source of foreign revenue from exports.Based on geographic considerations, and variations in the sedimentation, origin, formation, distribution and quality of the coals, 19 coalfields are generally recognised in South Africa. This paper provides an updated review of their exploration and exploitation histories, general geology, and coal seam nomenclature and coal qualities. Within the various coalfields autocyclic variability is the norm rather than the exception, whereas allocyclic variability is much less so, and allows for the correlation of genetically related sequences. During the mid-Jurassic break up of Gondwana most of the coals bearing successions were intruded by dolerite. These intrusions are important as they may cause devolatilisation and burning of the coal, create structural disturbances and related seam correlation problems, and difficulties in mining operations.Whilst many of the coalfields have been extensively explored and exploited, those in the north of the country have until recently received much less attention. Four coalfields occur partly or wholly within the Limpopo Province of South Africa and these may contain as much as 70% of South Africa's remaining coal resources. These coalfields in particular have been the focus of recent exploration due to the presence of large coking and thermal coal resources, as well as for their coal bed methane potential, resources that need to be unlocked regards to maximum benefit and minimal environmental degradation. South Africa's coals have been also recently addressed as palaeoclimate archives recording Gondwana's postglacial climate amelioration by major changes in land plant communities, and proving high-resolution palyno-stratigraphy as a crucial tool to decipher climate change during the Permo-Carboniferous. This aspect of the coals of South Africa is also reviewed.

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Section: Vryheid Formationmentioning

confidence: 99%

South Africa's coalfields — A 2014 perspective

Hancox

Götz

2014

International Journal of Coal Geology

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“…Some show marked relief owing to arching or folding of the marginal wing into the host sediment, and this feature, which is common amongst related fertile organs, has led to spurious interpretations of glossopterid reproductive structures in the past, e.g., as bipartite organs (Plumstead, 1956b) or as casts (Rex, 1986). Prevec et al (2008) and Prevec (2011Prevec ( , 2014 effectively demonstrated variations in preservational style of typical glossopterid fructication impressions and illustrated the range of architectures interpretable from these organs. Specimens were photographed under low-angle unidirectional light using a Canon EOS 40D camera equipped with a macro-lens.…”

Section: Methodsmentioning

confidence: 94%

“…The upswept wing striations near the base of Karingbalia fructifications are similarly orientated to those of the secondary wing of Bifariala (Prevec et al, 2008) and Elatra (Appert, MCLOUGHLIN: NEW GENUS OF GLOSSOPTERID FRUCTIFICATIONS 1977;Prevec, 2014) and this character may be useful in future efforts to evaluate phylogenetic relationships amongst glossopterids. Bifariala and Elatra differ from Karingbalia in, among other features, that they have a double-winged architecture.…”

Section: Systematic Paleobotanymentioning

confidence: 99%

A New Genus of Glossopterid Fructifications from the Artinskian to Changhsingian of Eastern Australia

McLoughlin

2016

Ameghiniana

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Abstract.A new genus, Karingbalia is established to accommodate certain eastern Australian glossopterid fertile organs previously assigned to Ottokaria Zeiller emend. Pant et Nautiyal. Karingbalia differs from Ottokaria mainly by the sub-parallel rather than perpendicular orientation of basal peripheral lobes with respect to the receptacle margin. Moreover, Karingbalia ranges from the Artinskian to Changhsingian, whereas Ottokaria sensu stricto is probably confined to the Cisuralian. Two Karingbalia species are recognized: K. inglisensis McLoughlin comb. nov. from the Lopingian of the Bowen and Sydney basins; and K. nychumensis sp. nov. from Artinskian-lower Kungurian strata on the Georgetown Inlier. Several additional species of Ottokaria from across Gondwana do not conform precisely to the diagnosis of that genus and their taxonomic reappraisal is proposed.

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“…Key studies include those from India (Surange & Chandra, 1975;Banerjee, 1984;Bajpai, 2001;Tewari et al, 2012;Srivastava & Agnihotri, 2013), Australia (Holmes, 1974;Rigby, 1972Rigby, , 1978McLoughlin, 1990aMcLoughlin, ,b, 1995McLoughlin, , 2012a, South Africa (Anderson & Anderson, 1985;Adendorff et al, 2002;Prevec et al, 2008;Prevec, 2011), Antarctica (Ryberg et al, 2012), and South America (Menéndez, 1962;Bernardes de Oliveira & Carvalho, 1981;Bernardes de Oliveira et al, 2000;Rösler et al, 1994;Barreda & Césari, 1995;Iannuzzi, 2010).…”

Section: Introductionmentioning

confidence: 99%

New glossopterid polysperms from the Permian La Golondrina Formation (Santa Cruz Province, Argentina): potential affinities and biostratigraphic implications

Cariglino¹

2015

Rev. bras. paleontol.

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-Impression fossils of ovuliferous fructifi cations from the Permian La Golondrina Formation in Santa Cruz, Argentina, are described, their affi nities compared, and fi nally, assigned to the Arberiaceae (Glossopteridales). Based on morphological differences from the genera in Arberiaceae, a new taxon is established for some specimens, whereas others are allocated to Arberia madagascariensis (Appert) Anderson & Anderson. This is the fi rst record of Arberiaceae from the La Golondrina Basin. The biostratigraphic implications of the occurrence of this family in this unit are discussed, and suggest that more evidence other than that provided by the megafl oral elements is needed to resolve the age of the constituent members of the La Golondrina Formation.

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Novel double wing morphology revealed in a South African ovuliferous glossopterid fructification: Bifariala intermittens (Plumstead 1958) comb. nov.

Cited by 25 publications

References 17 publications

South Africa's coalfields — A 2014 perspective

South Africa's coalfields — A 2014 perspective

A New Genus of Glossopterid Fructifications from the Artinskian to Changhsingian of Eastern Australia

New glossopterid polysperms from the Permian La Golondrina Formation (Santa Cruz Province, Argentina): potential affinities and biostratigraphic implications

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