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Title: A chancellorid-like metazoan from the early Cambrian Chengjiang Lagersttäte, China
Authors: Hou, Xianguang
Williams, Mark
Siveter, Derek J.
Siveter, David J.
Gabbott, Sarah
Holwell, David
Harvey, Thomas H. P.
First Published: 9-Dec-2014
Publisher: Nature Publishing Group
Citation: Hou, X. et al. A chancelloriid-like metazoan from the early Cambrian Chengjiang Lagersta¨tte, China. Sci. Rep. 4, 7340; DOI:10.1038/srep07340 (2014)
Abstract: Nidelric pugio gen. et sp. nov. from the Cambrian Series 2 Heilinpu Formation, Chengjiang Lagerstatte, 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
eISSN: 2045-2322
Version: Publisher Version
Status: Peer-reviewed
Type: Journal Article
Rights: Creative Commons Attribution NonCommercial ShareAlike 4.0 International License. http:// Version of record:
Appears in Collections:Published Articles, Dept. of Geology

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