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GEOREF RECORD

New well-preserved scleritomes of Chancelloriida from Early Cambrian Guanshan biota, eastern Yunnan, China

Zhao Jun, Li Guobiao and Paul A. Selden
New well-preserved scleritomes of Chancelloriida from Early Cambrian Guanshan biota, eastern Yunnan, China
Journal of Paleontology (November 2018) 92 (6): 955-971

Abstract

A large number of well-preserved chancelloriid scleritomes from the Guanshan biota, early Cambrian of Yunnan, China, are described as a new species, Allonnia tenuis n. sp., and provide solid evidence for the original appearance of these enigmatic animals, based on specimens compacted laterally and top-down. With the assistance of a flexible integument, chancelloriids, especially Allonnia from early and middle Cambrian, may have had the ability to partially or completely expand and contract the body, which might have played an important role in feeding. A new metazoan with single-element spines, Nidelric gaoloufangensis n. sp., is also described. Preservation and affinity are discussed. Detailed comparison of the morphology of the body and spines of this metazoan indicate that it shares many similarities with chancelloriids, of which it may be an unusual form. UUID: http://zoobank.org/2708d95a-1fae-46fc-afea-9707ae97a4d7


ISSN: 0022-3360
EISSN: 1937-2337
Coden: JPALAZ
Serial Title: Journal of Paleontology
Serial Volume: 92
Serial Issue: 6
Title: New well-preserved scleritomes of Chancelloriida from Early Cambrian Guanshan biota, eastern Yunnan, China
Affiliation: China University of Geosciences-Beijing, State Key Laboratory of Environmental Geology and Biogeology, Beijing, China
Pages: 955-971
Published: 201811
Text Language: English
Publisher: Paleontological Society, Lawrence, KS, United States
References: 37
Accession Number: 2019-006992
Categories: General paleontology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. 4 plates, sketch map
N25°00'00" - N25°00'00", E102°45'00" - E102°45'00"
Secondary Affiliation: University of Kansas, USA, United States
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2019, American Geosciences Institute. Abstract, Copyright, The Paleontological Society. Reference includes data from GeoScienceWorld, Alexandria, VA, United States
Update Code: 201906
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