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Microfossils from the Wumishan Formation of the Jixian System in the Ming Tombs, Beijing, China
Author(s) -
Pengyuan Zhang,
Shuqin Gu
Publication year - 1986
Publication title -
acta geologica sinica‐english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.444
H-Index - 61
eISSN - 1755-6724
pISSN - 0001-5717
DOI - 10.1111/j.1755-6724.1986.mp60004002.x
Subject(s) - beijing , china , assemblage (archaeology) , genus , paleontology , geography , geology , archaeology , biology , zoology
Members I‐IV of the Wumishan Formation of the Jixian System are exposed respectively in Mt. Cuihua and Mt. Hushan in the Ming Tombs, Beijing. Black banded cherts which are extensively developed in this formation contain an abundance of microfossils that are well preserved and variable in form. A study of thin sections shows that the microfossils include 10 genera, 12 species, 3 cf. species, 2 indeterminate species and 1 unnamed form, of which 1 genus and 7 species are newly erected. The present assemblage is morphologically comparable to those from the Wumishan Formation in the Western Hills of Beijing, Jixian County of Tianjin and Kuancheng of Hebei Province.