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

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On the Discovery of Middle Eocene Larger Foraminifera from a Limestone Bed in Churu District, Rajasthan


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1 228, Shreeji Nagar, Durgapura, Tonk Road, Jaipur - 302 018, India
     

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Definite Middle Eocene larger foraminifera has been found in the limestone at Sandwa, Bidasar area, Churu district in the Nagaur-Ganganagar basin, Rajasthan. Nummulites Cf. Obtuses (Sowerby) 1840 with two forms viz., A form (Dia. 2.8 mm) and B form (Dia. 9 mm) are observed. In the type area of Kachchh, N. Obtuses has been assigned the age of Middle Eocene. This find assigns the limestone bed to Jogira Formation and it also extends the limits of the Eocene Sea in Rajasthan by 80 km towards east.

Keywords

Palaeontology, Larger Foraminifera, Middle Eocene, Nagaur-Ganganagar Basin, Rajasthan.
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  • On the Discovery of Middle Eocene Larger Foraminifera from a Limestone Bed in Churu District, Rajasthan

Abstract Views: 180  |  PDF Views: 2

Authors

K. S. Raghav
228, Shreeji Nagar, Durgapura, Tonk Road, Jaipur - 302 018, India

Abstract


Definite Middle Eocene larger foraminifera has been found in the limestone at Sandwa, Bidasar area, Churu district in the Nagaur-Ganganagar basin, Rajasthan. Nummulites Cf. Obtuses (Sowerby) 1840 with two forms viz., A form (Dia. 2.8 mm) and B form (Dia. 9 mm) are observed. In the type area of Kachchh, N. Obtuses has been assigned the age of Middle Eocene. This find assigns the limestone bed to Jogira Formation and it also extends the limits of the Eocene Sea in Rajasthan by 80 km towards east.

Keywords


Palaeontology, Larger Foraminifera, Middle Eocene, Nagaur-Ganganagar Basin, Rajasthan.