A potential GSSP for the base of the uppermost Cambrian stage, coinciding with the first appearance of Lotagnostus americanus at Wa'ergang, Hunan, China

The first appearance datum (FAD) of the cosmopolitan agnostoid trilobite Lotagnostus americanus is a widely used marker for defining the base of the uppermost stage of the Cambrian System. Detailed field study on the L. americanus-bearing interval of the Wa'ergang section, Hunan, China, reveals...

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Bibliographic Details
Published inGFF Vol. 136; no. 1; pp. 208 - 213
Main Authors Peng, Shanchi, Babcock, Loren Edward, Zhu, Xuejian, Zuo, Jingxun, Dai, Tao
Format Journal Article
LanguageEnglish
Published Stockholm Taylor & Francis 02.01.2014
Taylor & Francis Ltd
Subjects
agnostoid
americanus
Cambrian
Earth and Related Environmental Sciences
first appearance datum
Geologi
Geology
Geovetenskap och miljövetenskap
GSSP
Lotagnostus
Lotagnostus americanus
Natural Sciences
Naturvetenskap
Stage 10
China, People's Rep
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Summary:The first appearance datum (FAD) of the cosmopolitan agnostoid trilobite Lotagnostus americanus is a widely used marker for defining the base of the uppermost stage of the Cambrian System. Detailed field study on the L. americanus-bearing interval of the Wa'ergang section, Hunan, China, reveals the FAD of L. americanus to be 29.65 m above the base of the Shengjiawan Formation. This horizon is close to the lowest known occurrences of the intercontinentally distributed polymerid trilobites Hedinaspis regalis and Charchaqia norini. The section has strong potential as a candidate for defining a global standard stratotype-section and point marking the base of provisional Stage 10.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:1103-5897
2000-0863
2000-0863
DOI:10.1080/11035897.2013.865666