Journal of Geological Society of India (Online archive from Vol 1 to Vol 78)

G. Lakshminarayana ¹, N. Kutumba Rao ¹

Affiliations
1 Geological Survey of India, Hyderabad 500 001, IN

Abstract

Ptilophyllum flora comprising Ptilophyllum cutchensis Cladophlebis denticulata, Cladophlebis Sp. Araucarites cutchensis, Araucorites Sp. (?) Elatocladus Sp. is reported from the buff siltstones and claystones of Dammapeta area, Chintalapudi sub-basin, Khammam District, Andhra Pradesh. The floral assemblage clearly indicates that the Dammapeta beds' belong to the Upper Gondwana, possibly Gangapur Formation and not Kamthi Formation (Lower Gondwana Group), as hitherto believed.

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G. Lakshminarayana ¹, M. N. Gururaja ¹, N. Kutumba Rao ¹

Affiliations
1 Geological Survey ofIndia, Chandra Vihar, Hyderabad 500001, IN

Abstract

Variegated clay-clast-bearing sandstones and purple claystones containing upper Gondwana plant fossils viz. Cladophlebis cf. denticulata, Ptilophyllum sp., Pterophyllum sp., Elatocladus conferta and Elatocladus cf. plana are recorded for the first time near Chintalapudi from the upper part of the 'Chintalapudi Sandstone' hitherto believed to be of lower Gondwana age. The present study has established that the newly identified upper Gondwana rock units belong to the Kota Formation overlying the 'Chintalapudi Sandstone' (= Karnthi Formation) with an unconformable contact.

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