Although there is no reliable information hi-therto reported from the Northern Xinjiang and Southern Tibet terranes,Cambrian trilobites are widely distributed in China. Trilobite evidence indicates that all the plates and some of the other terranes (including the Middle and Late Cambrian Middle Tianshan-Beishan Terrane) in China exhi-bit a close biogeographic link and may have formed part of eastern Peri-Gondwana during the Cambrian,with the exception of the Hinggan Region and the Early Cambrian Middle Tian...
