Floristic evidence on the age of Gondwana beds near Nidpur, Sidhi district, Madhya Pradesh

Abstract

On the evidence of mega- and microfossils, the fossiliferous beds at Nidpur are considered to be of the Triassic age. The various Triassic mega- and microfloral assemblages from the southern hemisphere have been compared with the floral assemblage of Nidpur. Floristically, the age of Nidpur fossiliferous bed is younger than the Panchet Stage. The most characteristic feature of the Nidpur flora is the overwhelming dominance of the genus Dicroidium.

Palaeobotany and climate around Marhwas area, Sidhi District, South Rewa Gondwana Basin during Upper Permian

“…The localities covered in this area are exposed mostly in the nala and river cuttings in the Villages around Gopad River Hughes (1881) mapped the area and collected plant fossils from Bajbai, Chanduidol, Parasi and few localities adjacent to Mahan (also spoken as Mohan) River Section, Feistmantel (1882) after making exhausttve studies assigned an Upper Permian age to these beds Ahmad (1955) and Raja Rao (1983) also suggested the age eqUivalent ro Raniganj to these beds on the basis of lithological features, which was further supported by palaeontological evidences (Tripathi, 1962). Satsangi (1964) discovered a .so-called DicrOidium bearing bed alongwith typical Permian assemblage bearing beds in the Gopad River Section near the Village Nidhpuri The presence of DicrOidium like f.ronds lead him ro postulate occurrence of a Triassic hori zon in the area This was further supported by Srivastava (1974). Banerji et al (1976) collected plant megafossils from three exposures, in close vicinity to each other, along the Gopad River and hesitantly dated two of the exposures as Triassic while the third one was definitely dated as Upper Permian, Again the former dating was done merely on the basis of a few specimens of poorly•preserved indeterminate specimens of Dicroidium like leaves,…”

Nidianthus gen. nov. - A Caytonanthus - like pollen organ from the Triassic of Nidpur, M.P., India

“…The fossil plants so far described include members belonging to algae, bryophytes, pteridophytes and gymnosperms. The megafossils of these beds have been described from time to time by Srivastava (1971Srivastava ( , 1974Srivastava ( , 1975Srivastava ( , 1976Srivastava ( , 1977, Bose and Srivastava (1970, 1971, 1972, Srivastava and Maheshwari (1973), Pant and Basu (1973, 1978, 1979, 1981 and Pant and Pant (1987). The present paper describes a structurally preserved detached synangiate organ frequently encountered among the carbonaceous residues extracted after HF maceration of the shales.…”

Macrofloral assemblage from the Early Permian Barakar Formation of Singrauli Coalfield, Son-Mahanadi Basin, India

“…Granite, gneiss, quartzite, phyllite, schist and pegmatite west of Singrauli main sub-basin are the most explored and studied rocks in terms of macrofossil studies in this Coalfield (Bhowmik & Das, 2008Bhowmik & Parveen, 2008, 2009Bose & Srivastava, 1970, 1972Chandra & Maheshwari 1988;Pant & Basu, 1973, 1977, 1978, 1979Srivastava, 1969Srivastava, , 1971Srivastava, , 1974Srivastava, , 1979Srivastava, , 1988. The present paper deals with the systematic studies of glossopterid assemblage recovered from the coal bearing sequence of Purewa Bottom seam of the Barakar Formation of Bina Colliery.…”