Some Contributions to the Stratigraphy of the Upper Gondwana Formations of the Pranhita-Godavari Valley, Central India

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Abstract
The Gangapur beds, believed to be the basal beds of the Upper Gondwana Kota formulation, are here shown to overlie the latter unconformably. This discovery, based on detailed mapping, clears up a long standing confusion, i.e. of a flora from the Gangapur beds judged to be later in age than the Kota fauna, but successionally preceding it. The Gangapur beds are hence removed from the Kota formation and are called here the Gangapur formation. The base of the Kota formation is redefined on the basis of faunal and lithological evidence. A new, late Upper Triassic, fauna has been discovered below the Kota beds, which is quite different from the typical, early Upper Triassic, Maleri fauna and also from the Lower Jurassic Kota fauna. On this faunal basis as well as on stratigraphic grounds the erection of a new formation (here called the Dharmaram formation) is suggested, and the boundary of the Maleri and Dharmaram formations is defined.

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