Plant spores and other microfossils from Upper Devonian and Lower Mississippian rocks of Ohio

Winslow, Marcia R.

doi:10.3133/pp364

Cited by 51 publications

(59 citation statements)

References 37 publications

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“…The latter concretions occur within the middle part of the Huron Member (==145m above the base), and none were described in lower levels of the formation (Stauffer, 1944). Furthermore, the Barberton concretions occur only ==30 m below the base of the Foerstia zone identified by Hass (1956) and Winslow (1962). Thus, the available evidence suggests that the large carbonate concretions have a much closer spatial relationship to the presumably synchronous Foerstia zone than to the diachronous base of the Huron Member.…”

Section: Stratigraphic Zonation Of the Carbonate Concretionsmentioning

confidence: 84%

“…Studies by Hass (1956), Winslow (1962), Winder (1966, Schopf and Schwietering (1970), and Murphy (1973) have established that a relatively thin ( < 45-m thickness) Foerstia zone occurs at widely distributed localities in the Huron Member (Ohio and Kentucky), Chattanooga Shale (Tennessee), Chagrin Shale (Ohio), Kettle Point Shale (Ontario), and Ellicot Shale (Pennsylvania and New York). Where comparisons are possible, the published descriptions indicate that the carbonate concretions occur near and not more than 30 m below the base of the Foerstia zone (see Hass, 1956;Winder, 1966;Schopf and Schwietering, 1970; also see figure 6 of Broadhead and others, 1980).…”

Section: Stratigraphic Zonation Of the Carbonate Concretionsmentioning

confidence: 99%

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An organic origin for the carbonate concretions of the Ohio Shale

Criss¹,

Cooke²,

Day³

1988

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Section: Stratigraphic Zonation Of the Carbonate Concretionsmentioning

confidence: 84%

Section: Stratigraphic Zonation Of the Carbonate Concretionsmentioning

confidence: 99%

An organic origin for the carbonate concretions of the Ohio Shale

Criss¹,

Cooke²,

Day³

1988

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“…triunfensis shows no resemblance to other species of megaspores that have been described from either Argentina or Brazil. However, it shows similarities, in shape and type of gula, to certain specimens that were described from the Namurian of the Illizi Basin (Candilier et al 1982) Beyond Gondwana, Auritolagenicula auricula, described by Winslow (1962) as Triletes auritulus from the Lower Mississipian of Ohio, U.S.A., shows some similarity to L. triunfensis in size and in the type of gula, but the ornamentation and shape of the auriculae are different. Trindade, 1970 Figure 4 (pictures 1-6) and Figure 5 …”

Section: Lagenoisporites Triunfensismentioning

confidence: 89%

Megaspores from coals of the Triunfo Member, Rio Bonito Formation (Lower Permian), northeastern Paraná State, Brazil

Ricardi-Branco

Arai

Rösler

2002

An. Acad. Bras. Ciênc.

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This paper presents the results of a detailed study of megaspores occurring in coal seams of the Triunfo Member, Rio Bonito Formation at Figueira, Paraná State, Brazil. This coal-bearing sequence accumulated in a marine delta system during the Early Permian.Four species are described and illustrated: Lagenoisporites triunfensis, L. scutiformis, Sublagenicula cf. brasiliensis, and Setosisporites cf. furcatus. Of these, the two species of Lagenoisporites are predominant. Relationships to other megaspore species are discussed; and the temporal and spatial distributions of the four species in the Paraná Basin are documented.

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“…minor, and Vallatisporites pusillites. The distinctive association of Retispora lepidophyta and Vallatisporites pusillites is a characteristic component of latest Devonian and earliest Mississippian assemblages in Europe and North America, and has been previously reported from the Bedford Shale in Ohio and Kentucky (Winslow, 1962;Molyneux et al, 1984, Coleman andClayton, 1987;Clayton et al 1998). This association, which is accompanied by several Late Devonian-Early Mississippian acritarchs including Gorgonisphaeridium, Leiosphaeridia, Multiplicisphaeridium, Umbellisphaeridium, and Veryhachium, is considered to be present in the Portsmouth Shale due to reworking of material from an older Bedford Shale source.…”

Section: Case Studiesmentioning

confidence: 99%

An effective palynological preparation procedure using hydrogen peroxide

Riding¹,

Kyffin-Hughes²

2007

Palynology

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Most pre-Quaternary palynology samples are currently prepared by demineralisation of the sediment/sedimentary rock matrix using hydrochloric and hydrofluoric acids (HCl and HF respectively). If a consistently effective alternative to this procedure can be developed, palynological processing will be made significantly less hazardous to both laboratory personnel, and to the wider environment. Furthermore, most non-acid processing methods are normally quicker and cheaper than matrix dissolution using acid. Some authors have previously used hydrogen peroxide (H 2 O 2 ) to extract palynomorphs by the physico-chemical disaggregation of the clay fraction. However, H 2 O 2 is a powerful oxidizing agent and hence can potentially destroy sedimentary organic material, including palynomorphs. A new method using hot H 2 O 2 , where exposure of the sample material to the H 2 O 2 is minimised, has been developed. Crushed sample material in a suitable vessel is placed on a hot plate for one minute, treated with 15-30% H 2 O 2 for 10 minutes, then the residue is diluted with cold distilled water. Disaggregated sample material tends to float, and is decanted into a large vessel containing distilled water to further dilute the H 2 O 2 . If any undisaggregated sample remains, the procedure is repeated several times if necessary. Relatively indurated sedimentary lithotypes normally require several treatments. The reason for this stepwise treatment is that the organic material is not exposed to H 2 O 2 for sustained periods, thereby reducing the possibility of palynomorph damage/degradation due to oxidation. When the sample matrix has been fully disaggregated, the residue can be further processed as appropriate.In this study, eight samples of Carboniferous, Jurassic, Paleogene, and Quaternary age were prepared quantitatively using the new H 2 O 2 method. These were all prepared using 30% H 2 O 2 . For comparison, they were also prepared quantitatively using HCl/HF and/or sodium hexametaphosphate [(NaPO 3 ) 6 ]. Quantitative preparations allow the concentration of palynomorphs extracted to be determined, and therefore the effectiveness of the techniques used can be compared objectively. The palynomorph residues derived from these three techniques varied markedly. The H 2 O 2 method does not consistently disaggregate all the sample material, particularly the older and more indurated lithotypes. Some evidence of oxidation effects was observed. Two samples of Mississippian mudstone from the U.S.A. were prepared using H 2 O 2 and (NaPO 3 ) 6 . Both methods produced abundant miospores, however the H 2 O 2 procedure yielded far higher palynomorph concentrations than the (NaPO 3 ) 6 2 technique. Minor degradation of palynomorphs in the H 2 O 2 preparation was noted. The H 2 O 2 and HCl/HF methods were compared directly on a palynomorph-rich sample of Upper Carboniferous mudstone from offshore Scotland. Both preparations produced abundant miospores. The HCl/HF method had significantly higher recovery levels than the H 2 O 2 procedure....

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Plant spores and other microfossils from Upper Devonian and Lower Mississippian rocks of Ohio

Cited by 51 publications

References 37 publications

An organic origin for the carbonate concretions of the Ohio Shale

An organic origin for the carbonate concretions of the Ohio Shale

Megaspores from coals of the Triunfo Member, Rio Bonito Formation (Lower Permian), northeastern Paraná State, Brazil

An effective palynological preparation procedure using hydrogen peroxide

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