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Title: A chancelloriid-like metazoan from the early Cambrian Chengjiang Lagerstätte, China
Authors: Hou, Xianguang
Williams, Mark
Siveter, David J.
Siveter, Derek J.
Gabbott, Sarah
Holwell, David A.
Harvey, Thomas H. P.
First Published: 9-Dec-2014
Publisher: Nature Publishing Group
Citation: Scientific Reports, 4, Article number: 7340 (2014)
Abstract: Nidelric pugiogen. et sp. nov. from the Cambrian Series 2 Heilinpu Formation, Chengjiang Lagerstätte, Yunnan Province, China, is an ovoid, sac-like metazoan that bears single-element spines on its surface. N. pugio shows no trace of a gut, coelom, anterior differentiation, appendages, or internal organs that would suggest a bilateral body plan. Instead, the sac-like morphology invites comparison with the radially symmetrical chancelloriids. However, the single-element spines of N. pugio are atypical of the complex multi-element spine rosettes borne by most chancelloriids and N. pugio may signal the ancestral chancelloriid state, in which the spines had not yet fused. Alternatively, N. pugio may represent a group of radial metazoans that are discrete from chancelloriids. Whatever its precise phylogenetic position, N. pugio expands the known disparity of Cambrian scleritome-bearing animals, and provides a new model for reconstructing scleritomes from isolated microfossils.
DOI Link: 10.1038/srep07340
ISSN: 2045-2322
Version: Published version (publisher PDF)
Status: Peer-reviewed
Type: Journal Article
Rights: Copyright © The Authors, 2014 This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder in order to reproduce the material. To view a copy of this license, visit
Description: The file associated with this record is embargoed until the date of publication. The final published version may be available through the links above.
Appears in Collections:Published Articles, Dept. of Geology

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