At the invitation of Muhammad Amjad Sabir, director of institute of information technology of Pakistan's COMSATS, accompanied by Dr. Muhammad Qasim and other Pakistani collaborators, the Late Paleozoic research team of NIGPAS carried out the field work in the Yanling region of Pakistan from March 11 to March 19. The field work was supported by the local government and researchers were ensured security throughout the whole process, which fully demonstrates the friendship between China and Pakistan.