基干鲸类的多样性及其与中兽和偶蹄类的系统关系

高红艳, 倪喜军 - 古脊椎动物学报, 2015 - vertpala.ac.cn
… The oldest-known pakicetid fossils are from Early Eocene strata in Pakistan, and they are …
northern Pakistan and northwestern India. Gandakasia potens was the first-discovered species …