Recently, a Pei-hsin phase has been found in T’eng-hsien, southern Shantung, which bears considerable resemblance to the Tz’u-shan/ P’ei-li-kang culture,¹⁴ and this has led to the speculation that Tz’u-shan/P’ei-li-kang was ancestral as well to the Ch’ing-lien-kang culture of the eastern seaboard (pp. 133-40).
Source: wiktionary