New Record of Palaeoscolecids from the Early Cambrian of Yunnan, China |
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| Authors: | HU Shixue LI Yong LUO Huilin FU Xiaoping YOU Ting PANG Jiyuan LIU Qi Michael STEINER |
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| Institution: | 1. Yunnan Institute of Geological Sciences, Kunming 650051, Yunnan, China;2. State Key Laboratory of Paleobiology and Stratigraphy (NIGP, CAS), Nanjing 210008, China;3. Shenzhen Palaeontological Museum, Shenzhen 518004, Guangdong, China;4. Faculty of Earth Science, China University of Geosciences (Wuhan), Wuhan 430074, China;5. Technische Universit?t Berlin, D‐13355 Berlin, Germany |
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| Abstract: | A new palaeoscolecid,Guanduscolex minor Hu,Luo et Fu gen.et sp.nov.,with preserved soft parts of introvert and intestines comes from the Lower Cambrian Guanshan fauna of Yunnan, South China.Microstructural details of the cuticle revealed by scanning electron microscopy(SEM) show that each annulation bears three rows of plates and each plate bears 9-10 marginal and 4-5 central nodes.This discovery sheds new light on the relationships and evolutionary pathway of the palaeoscolecids and other early priapulids. |
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| Keywords: | Palaeoscolecid Guanshan fauna ultrastructure Early Cambrian Yunnan China |
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