From Xinhua:
Archaeologists have unearthed four colored tomb figures in a tomb in northwest China’s Shaanxi Province dating back to the Zhou Dynasty (1046 BC-221 BC).
The four colored wooden tomb figures, about 80 centimeters tall, are believed to be at least 500 years older than that of the terracotta warriors and horses of Qin Dynasty (221 BC – 206 BC), said Yin Shenping, a researcher with the provincial archeological institute. [Full Text]
See also the Archaeology in China site that lists major archaeological finds in the last decade.