New Early Cambrian Chordates from Haikou, Kunming  

作　　者：LUO Huilin, HU Shixue and CHEN Liangzhong Yunnan Institute of Geological Sciences, 131 Baita Road, Kunming 650011, Yunnan 

出　　处：《Acta Geologica Sinica(English Edition)》2001年第4期345-348,共4页地质学报（英文版）

摘　　要：Two new chordates, Cathaymyrus haikouensis Luo et Hu sp. nov. and Zhongxiniscus intermedius Luo et Hu gen. et sp. nov. are studied in this paper. Both display numerous S-shaped myomeres on their trunk. C. haikouensis shows a long and slim body similar to that of Cathaymyrus diadexus Shu et al., Zhongxiniscus approaches to Myllokunmingia and Haikouichthys in the dorsal fin, but differs in the myomeres. Zhongxiniscus may be the intermediate form between Cathaymyrus and Myllokunmingia and Haikouichthys.Two new chordates, Cathaymyrus haikouensis Luo et Hu sp. nov. and Zhongxiniscus intermedius Luo et Hu gen. et sp. nov. are studied in this paper. Both display numerous S-shaped myomeres on their trunk. C. haikouensis shows a long and slim body similar to that of Cathaymyrus diadexus Shu et al., Zhongxiniscus approaches to Myllokunmingia and Haikouichthys in the dorsal fin, but differs in the myomeres. Zhongxiniscus may be the intermediate form between Cathaymyrus and Myllokunmingia and Haikouichthys.

关 键 词：Haikou Kunming Early Cambrian CHORDATE 

分 类 号：Q915[天文地球—古生物学与地层学]