Archaeologists said a Neolithic Chinese city was excavated on Wednesday in east China's Anhui Province.

Part of a trapezoidal city wall and moat from the 4,500-year-old Nanchengzi Ruins in Guzhen County have been uncovered, along with a great number of houses, according to archaeologists from Wuhan University.

The archaeology team has also unearthed items from the Neolithic Age to the Han Dynasty, which dates back about 2,000 years. The items include deer heads and antlers, tortoise shell, and wheat and rice seeds.

"The discovery is very valuable for research on historical, social and environmental changes in the area," said He Xiaolin, professor and archaeologist from Wuhan University.

The Nanchengzi Ruins were first found in the 1980s when archaeological authorities believed the site was an ancient settlement. They only identified the ruins as part of a larger city after they discovered the city wall on Wednesday.