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A New Vetulicolian from the Early Cambrian Chengjiang Fauna in Yunnan of China
Author(s) -
Ailin CHEN,
Hongzhen FENG,
Maoyan ZHU,
Dongsheng MA,
Ming LI
Publication year - 2003
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/j.1755-6724.2003.tb00742.x
Subject(s) - fauna , body plan , genus , lineage (genetic) , china , zoology , biology , paleontology , geography , ecology , fishery , archaeology , embryo , biochemistry , gene
The genus and species Yuyuanozoon magnificissimi gen. et sp. nov., a new fossil vetulicolian, is reported from the Early Cambrian Chengjiang Fauna in Yunnan of China. It has a bipartite body plan and five pairs of chain‐formed gill sacs, showing the general characteristics of Ventulicolia. However, the exclusive “atrial cavity” and external gill observed indicate that the new form is different from those previously described as vetulicolians, probably representing a lineage developed within deuterostomes and more primitive than urochordates.