| Abstract: |
Between 1972 and 1974 a number of Early Palaeolithic sites were discovered in the Lampang and Phrae intermontane basins in North Thailand. They have been reported and discussed on several occasions (Sorensen 1976, 1985). The chronological adjustment of the border between the Brunhes Normal and the Matuyama Reversed magnetocrons to 780/790,000 years ago affects the age of the North Thailand sites. In consequence, a re-discussion of their chronology is presented here, suggesting an Early Pleistocene time bracket of 1.2 to 0.8 mya for two of the Lampang sites, while the majority of the other sites in the Lampang and Phrae basins are probably dateable within a Mid-Pleistocene time bracket of c. 700,000 to 560,000 years.
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