Early Cambrian eocrinoids from Guizhou Province, South China

被引：36
|
作者：
Zhao, Yuanlong [1 ]
Parsley, Ronald L.
Peng, Jin
机构：
[1] Guizhou Univ, Coll Resource & Environm Engn, Guiyang 550003, Peoples R China
[2] Chinese Acad Sci, NIGP, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Peoples R China
[3] Tulane Univ, Dept Earth & Environm Sci, New Orleans, LA 70118 USA
[4] Nanjing Univ, Dept Earth Sci, Nanjing 210093, Peoples R China
来源：
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY | 2007年 / 254卷 / 1-2期
基金：
美国国家科学基金会;
关键词：
Guizhoueocrinus yui gen. et sp nov; eocrinoid; gogiids; lower Cambrian; Balang Formation; Guizhou Province; China;
D O I：
10.1016/j.palaeo.2007.03.020
中图分类号：
P9 [自然地理学];
学科分类号：
0705 ; 070501 ;
摘要：
Numerous specimens of Guizhoueocrinus yui n gen. et sp. occur in the middle-upper parts of the Lower Cambrian Balang Formation, eastern Guizhou, and are the earliest well preserved gogiids. Mature specimens are larger than most comparable gogiids, thecal plates are very numerous and sutural pores are smaller. Stalk is polyplated, conical and long; brachioles (up to 10) are spirally coiled. The species comprises a significant component of the Balang Fauna. It is distinctly different than Sinoeocrinus lui and Sinoeocrinus globus from the Middle Cambrian Kaili Biota in the adjacent region in Guizhou. This new gogiid expands the geographic range of Lower Cambrian eocrinoids and provides significant new data on gogiid evolution. (c) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码：317 / 327
页数：11
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