TINY DIGITATE STROMATOLITE (YELMA-DIGITATA GREY), CHITRABHANUKOT FORMATION, KALADGI BASIN, INDIA

Tiny digitate stromatolite Yelma digitata Grey, 1984 (ref. 1) has been recorded from Chitarbhanukot Dolomite Formation, Bagalkot Group of Ka ladgi Basin for the first time. They are columnar, parallel branched, multifurcate to bifurcate, walled, haring cornices at places. Individu al fascicles are rounded in cross section. Individual columns are 20-5 0 mm in height and 3-5 mm in diameter. Its microstructure is regular b anded type and microfabric is radial fibrous to vermiform. The occurre nce of Yelma digitata has been recorded from Orosirian (Late Palaeopro terozoic) sediments in other parts of the world. Its occurrence sugges ts that the Bagalkot Group may be older than previously considered.