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A crown group priapulid from the early Cambrian Guanshan Lagerstätte

Part of: From Snowball Earth to the Cambrian Explosion: Evidence from China

Published online by Cambridge University Press:  03 April 2017

SHI-XUE HU ,
MAO-YAN ZHU ,
FANG-CHEN ZHAO Open the ORCID record for FANG-CHEN ZHAO [Opens in a new window]  and
MICHAEL STEINER
SHI-XUE HU*
Affiliation:
Chengdu Institute of Geology and Mineral Resources, Chengdu 610081, China
MAO-YAN ZHU
Affiliation:
State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, 39 East Beijing Road, Nanjing 210008, China University of Chinese Academy of Sciences, Beijing 100049, China
FANG-CHEN ZHAO
Affiliation:
State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, 39 East Beijing Road, Nanjing 210008, China University of Chinese Academy of Sciences, Beijing 100049, China
MICHAEL STEINER
Affiliation:
Institut für Geologische Wissenschaften, Freie Universität Berlin, Malteserstraße 74–100, D-12249 Berlin, Germany
*
†Author for correspondence: hushixue@126.com
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Abstract

A well-preserved fossil priapulid worm, Xiaoheiqingella sp., is reported from the early Cambrian Guanshan Lagerstätte (Cambrian Series II, Stage 4) near Kunming City, Yunnan Province, SW China. The body of the animal consists of four sections: a swollen introvert, a constricted neck, a finely annulated trunk and a caudal appendage. The body configuration exhibits a close resemblance to that of the crown group priapulid Xiaoheiqingella peculiaris from the early Cambrian Chengjiang Lagerstätte. The new discovery provides another striking example of crown group priapulids, representing the third occurrence of crown group fossil priapulids after the Chengjiang Lagerstätte (Cambrian Series II, Stage 3) and the Mazon Creek Lagerstätte (late Moscovian Stage, Pennsylvanian). The discovery also sheds new light on the early diversity and evolution of priapulid worms.

Keywords

priapulidsWulongqing FormationGuanshan LagerstätteCambrianChina
Type
Rapid Communication
Information
Geological Magazine , Volume 154 , Issue 6: THEMATIC ISSUE: From Snowball Earth to the Cambrian Explosion: Evidence from China , November 2017 , pp. 1329 - 1333
Copyright
Copyright © Cambridge University Press 2017 

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