The right location and with the polished stone implements, storage pits and painted pottery, you’d guess a Yangshao culture site. There isn’t much discussion of the cemetery but the mention of tombs suggests social stratification. The date would be right for the beginning of bronz implements. However, that’s a really complicated period in China.
The very thing that generates a lot of public interest in digs — tombs, up to and including the pyramids — skews how the ancient civs get viewed; for much older sites, we see what survives, mainly stone implements, relying on the rare survival of the imprint of woven items like baskets and fabrics. Even the existence of writing may be much older than generally accepted, but the materials used haven’t survived.