Some plant fossils from the Gopad River Section near Nidpur, Sidhi District, Madhya Pradesh

Banerji, J.; Maheshwari, H.K; Bose, M.N.

doi:10.54991/jop.1974.952

Cited by 7 publications

(9 citation statements)

References 3 publications

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“…Remarks-There are thirty fragmentary leaf impressions in the collection and leaves form open hexagonal mesh pattern closely compare with the leaves of G. retifera described by Feistmantel, 1881; Srivastava, 1957;Banerji et al, 1976;Bose et al, 1977;Banerji and Bose, 1977and Chandra and Surange, 1979 described a fragmentary specimen of G. retifera from the northern branch of Nonia Nala, near "Indigo" factory bridge (Dakshindhadha). It is the first record from northwestern branch of Nonia Nala, east of Kumarpur.…”

Section: Glossopteris Intermedia Feistmantel 1880mentioning

confidence: 58%

Plant fossils of Maitur Formation: possibly the ultimate stage of Glossopteris flora in Raniganj Coalfield, India

Pal

Srivastava²,

Ghosh³

2010

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The present paper deals with the plant megafossil assemblage from the Maitur Formation, the lower part of Panchet Group of rocks, unconformably overlain by coal bearing Raniganj Formation in Raniganj Coalfield, West Bengal. The plant fossils are collected from two localities exposed in Nonia Nala Section near Asansol, Burdwan District, West Bengal. The assemblages are represented by the typical elements of Glossopteris flora, viz. Trizygia speciosa, Neomariopteris hughesii. N. lobifolia, Dichotomopteris lindleyii, D. ovata, Glossopteris indica, G. tenuifolia, G. emarginata, G. angustifolia. G conspicua, G. intermedia, G. retifera, G. gopadensis, G. taeniensis, Glossopteris sp. cf. G. dhenkanalensis, one new species G. burdwanensis sp. nov., glossopterid scale-leaves and seed-like body. The age of Maitur Formation has been assigned to Early Triassic but the plant fossil assemblages are comparable with the Late Permian plant fossils of Kamthi, Pachhwara and Bijori formations in having narrow leaf forms of Glossopteris. The investigation supports the view that there is no floral break at the Raniganj-Panchet Boundary and flora of Maitur Formation in all probability represents the ultimate stage of Glossopteris flora in Raniganj Coalfield before the onset of Early Triassic Dicroidium flora in Deoli/Hirapur Formation belonging to upper part of Panchet Sequence in Raniganj Coalfield, West Bengal.

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Section: Glossopteris Intermedia Feistmantel 1880mentioning

confidence: 58%

Plant fossils of Maitur Formation: possibly the ultimate stage of Glossopteris flora in Raniganj Coalfield, India

Pal

Srivastava²,

Ghosh³

2010

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“…Remarks-As compared to Dicroidium nidpurensis, D. gopadensis is less common in the Nidpur beds. Banerji et al (1976) described Dicroidium sp. C from Nidpur.…”

Section: Dicroidium Gopadensismentioning

confidence: 99%

“…C from Nidpur. The specimens, in form and venation pattern, are similar to those of D. gopadensis, however, Banerji et al (1976) refrained from assigning their specimens to D. gopadensis because of the absence of cuticular features. Pal, 1984b (Pl.…”

Section: Dicroidium Gopadensismentioning

confidence: 99%

Reappraisal of the genus Dicroidium Gothan from the Triassic sediments of India

Pal

Ghosh²,

Kar³

et al. 2014

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The genus Dicroidium Gothan, belonging to Corystospermaceae, is characterised by pinnately compound leaves with proximally forked primary rachis. The genus was earlier included under the genus Thinnfeldia Ettingshausen. Dicroidium is the most consistent macrofloral element in the Triassic strata of Southern Hemisphere. The present reassessment deals with the morphotaxonomy and stratigraphic significance of the species of Dicroidium in India. A critical review of the literature reveals that the specimens of Dicroidium described so far from India require reassessment, because same morphotypes have often been placed under different species names and sometimes dissimilar elements have been assigned to the same species. In view of this, a thorough analysis of Indian Dicroidium was undertaken based on fresh collections along with the species described earlier by previous workers. The present reappraisal reveals that the genus in the Triassic of Peninsular India is represented by eight species. These are D. hughesii (Feistmantel) Lele, D. zuberi (Szajnocha) Archangelsky, Dicroidium sp. cf. D. crassinervis (Geintz) Anderson & Anderson, D. townrovii Retallack, D. nidpurensis Bose & Srivastava, D. gopadensis Bose & Srivastava, D. giarensis Pal and Dicroidium sp. In Indian peninsula, appearance of Dicroidium heralds the onset of Triassic sediments belonging to the early Triassic Panchet Formation (Induan). In the younger sequence of Triassic, i.e. during late Triassic Tiki and Parsora formations (Carnian to Norian–Rhaetian), the diversity and species richness of the genus gradually enhanced and Dicroidium foliages became the most predominant component of Triassic macroflora of India. The genus does not occur in strata younger than the Triassic and thereby the total extinction of Dicroidium signifies the end of the Triassic Period.

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“…stenoneura. The variety was raised to the specific rank by Banerji et al (1976) without examining the original assignment of the species by Feistmantel (1877). Chandra and Surange (1979) studied the morphological features of the species and included the leaves described by Kar (1968) as G. decipiens and G. fusa by Kulkarni (1971) under G. stenoneura.…”

Section: Glossopteris Stenoneuramentioning

confidence: 99%

Morpho-cuticular study of Glossopteris stenoneura Feistmantel from the Barakar Formation of Raniganj Coalfield, West Bengal

Srivastava¹,

Tewari²,

Agnihotri³

2010

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The morphological and cuticular features of well-preserved leaves of Glossopteris stenoneura Feistmantel collected from Barakar Formation of Churulia area, Raniganj Coalfield are analyzed. The study indicates that spathulate shaped leaves are distinct in having narrow-elongate trapezoidal meshes near the midrib and short, narrow meshes near the margin of leaves. Cuticle is amphistomatic, the surface of upper cuticle characteristically shows fine striations over the vein area. Stomata are anomocytic, ovalelongate with cutinized guard cells. Subsidiary cells of lower cuticle demonstrate papillae overhanging stomata.

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Some plant fossils from the Gopad River Section near Nidpur, Sidhi District, Madhya Pradesh

Cited by 7 publications

References 3 publications

Plant fossils of Maitur Formation: possibly the ultimate stage of Glossopteris flora in Raniganj Coalfield, India

Plant fossils of Maitur Formation: possibly the ultimate stage of Glossopteris flora in Raniganj Coalfield, India

Reappraisal of the genus Dicroidium Gothan from the Triassic sediments of India

Morpho-cuticular study of Glossopteris stenoneura Feistmantel from the Barakar Formation of Raniganj Coalfield, West Bengal

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