In this paper, 23 species of 14 genera within the melange of the Saga area are documented. On this basis, a stratigraphic correlation is established between the Tethys Himalaya and the Yarlung-Tsangpo suture zone. The Cretaceous siliceous rock and siliceous mudstone strata in the melange are also reported. Six stratigraphic units are identified in the Tethys Himalaya (Jurassic Zhela and Weimei formations, Cretaceous Rilang, Duobeng and Chuangde formations, and Paleocene Sangdanlin Formation). The Early Cretaceous radiolarians from the melange and the deep-water sediments of the passive continental margin in the Rilang and Duobeng formations both indicate that during the Early Cretaceous, the Neo-Tethys Ocean was a widespread deep-sea environment. The reconstructed strata in this study are considered to have been deposited contemporaneously with the Rilang and Duobeng formations. In other words, while the Rilang and Duobeng formations were deposited along a passive continental margin, the deposition of the siliceous deep-water and hemipelagic sediments occurred in the ocean. After the Early Cretaceous, these sediments were preserved as accretionary melange, becoming part of the Yarlung-Tsangpo suture zone. (c) 2025 Elsevier B.V. and Nanjing Institute of Geology and Palaeontology, CAS. All rights are reserved, including those for text and data mining, AI training, and similar technologies.