1. Department of Geology, HNB Garhwal University, Srinagar Garhwal, 246174 Uttarakhand, India,
2. Department of Geosciences, University of Arizona, Tucson, AZ 85721, U.S.A.,
3. Division of Vertebrate Paleontology, Yale Peabody Museum of Natural History, New Haven, CT 06520, U.S.A.
4. Department of Paleobiology, National Museum of Natural History, Smithsonian Institution, Washington, DC 20013, U.S.A.