Trace fossils from the Nagaur Sandstone, Marwar Supergroup, Dulmera area, Bikaner district, Rajasthan, India

Thirteen trace fossils are described from the Nagaur Sandstone, the lower formation of the Nagaur Group. These are Rusophycus didymus Salter, 1856, Chondrites isp. Brongniart, 1828, Cruziana isp. d'Orbigny, 1842, Isopodichnus isp. Bornemann, 1989, Dimorphichnus obliquus Seilacher, 1955, Monomorphichnus monolinearis Shah and Sudan, 1983, Diplichnites isp. Dawson, 1873, Skolithos isp. Haldeman, 1840, Palaeophycus tubularis Hall, 1847, Planolites isp. Nicholson, 1873, Ichnogenus A, Trails and Scratch Marks (?). This assemblage has been referred to as the Cruziana assemblage and on this basis the Nagaur Sandstone has been suggested a Lower Cambrian age. The Nagaur Sandstone has been correlated with the Purple Sandstone of Pakistan, the Tal succession of the Kumaun and Himachal Lesser Himalaya and the Garbyang, Lolab and Kunzum-La Formations of the Tethys Himalaya.