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New Localities and Palaeoscolecid Worms from the Cambrian (Stage 4, Series 2) Guanshan Biota in Kunming, Yunnan, South China
Author(s) -
LIU Jianni,
HAN Jian,
LI Jinshu,
WU Yichen,
PENG Jie,
QI Nan,
YANG Yiyao,
LI Juan
Publication year - 2016
Publication title -
acta geologica sinica ‐ english edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.444
H-Index - 61
eISSN - 1755-6724
pISSN - 1000-9515
DOI - 10.1111/1755-6724.13013
Subject(s) - biota , species richness , taxon , ecology , geography , geology , china , paleontology , archaeology , biology
The Guanshan Biota from the Cambrian Stage 4 Wulongqing Formation is a typical Burgess‐shale type Lagerstätte that had witnessed the Cambrian explosion. Here we report two new localities of the Guanshan Biota, which is located at Baimei village, south of Kunming and Xinglong village, Wuding County, Yunnan Province respectively. Both localities produce soft‐body fossils and several new taxa, e.g . a new species of palaeoscolecidans ( Palaeoscolex xinglongensis sp. nov.) reported herein. The comparative study of the new species with similar form not only indicates that there is a diversification of palaeoscolecid species in Guanshan Biota, but also strengthens the ties between the older Chengjiang Biota and the younger Kaili Biota (and also the coeval Burgess Shale community). Three paleoecological features, including high diversity, little disparity and richness of palaeoscolecid worms, are summarized as a case study to represent the differences between Guanshan and Chengjiang Biota.