Record of Terminal Neoproterozoic Ediacaran Fossils from Krol Group, Nigalidhar Syncline, Sirmaur District, Himachal Pradesh, India

Abstract

The note records Ediacaran fossil cf. Dickinsonia sp. from the rocks of Kauriyala Formation (= Krol C, D and E of Auden, 1934), Krol Group exposed at about 400 m west of Thalla (30°37'15": 77° 39'30"), Sirmaur district, Himachal Pradesh, India in the northern limb of Nigalidhar Syncline (Fig. la, b). The Kauriyala Formation (after Shanker et al. 1993) has also yielded other Ediacaran fossils viz. Conomedusites lobatus, Tirasiana sp. and Beltanelliformis cf. brunsae and microbial mat structures from the same horizon and locality in the northern limb of Nigalidhar Syncline, Sirmaur district, Himachal Pradesh, India (Shanker et al. 1997). The microbial structures have also been recorded in association with Ediacaran fossil of Kauriyala Formation, Krol Group in the Garhwal Syncline (Mathur and Srivastava, 2004). The genus Dickinsonia is restricted in Proto-Gondwana (McMenamin, 1982).