|本期目录/Table of Contents|

[1]侯笑晋,郝亚青,姚肖永,等.陕西省宁强县早寒武世宽川铺组具瘤突装饰的Olivooides-like胚胎化石新类型[J].地球科学与环境学报,2010,32(04):350.
　HOU Xiao-jin,HAO Ya-qing,YAO Xiao-yong,et al.New Olivooides-like Embryos with Protuberances from the Early Cambrian Kuanchuanpu Formation in Ningqiang County, Shaanxi Province[J].Journal of Earth Sciences and Environment,2010,32(04):350.
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《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

卷:
第32卷
期数:
2010年第04期
页码:
350
栏目:
基础地质与矿产地质
出版日期:
2010-12-20

文章信息/Info

Title:
New Olivooides-like Embryos with Protuberances from the Early Cambrian Kuanchuanpu Formation in Ningqiang County, Shaanxi Province
文章编号:
1672-6561(2010)04-0350-05
作者:
侯笑晋1; 郝亚青1; 姚肖永1; 韩健1; 李勇2; 刘云焕2
(1.西北大学 地质学系,陕西 西安 710069; 2.长安大学 地球科学与资源学院,陕西 西安 710054)
Author(s):
HOU Xiao-jin1;  HAO Ya-qing1;  YAO Xiao-yong1;  HAN Jian1;  LI Yong2;  LIU Yun-huan2
(1. Department of Geology, Northwest University, Xi'an 710069, Shaanxi, China; 2. School of Earth Sciences and Resources, Chang'an University, Xi'an 710054, Shaanxi, China)
关键词:
胚胎化石; Punctatus; 梅树村期; 宽川铺组; 陕西省
Keywords:
fossil embryos;  Punctatus;  Meishucunian Stage;  Kuanchuanpu Formation;  Shaanxi Province
分类号:
Q913.2
DOI:
-
文献标志码:
A
摘要:
早寒武世梅树村期小壳化石处于“寒武纪生命大爆发”的第一幕,对于揭示后生动物起源至关重要。对陕南宽川铺地区早寒武世早期宽川铺组第一个小壳化石组合带中发现的动物球状胚胎化石进行大量观察,发现了两枚Olivooides-like的新型动物胚胎化石。此类化石的胚胎表面并非PunctatusEmeiensis常见的密集分布的典型或非典型的尖刺状结构,而是呈基端具螺旋状环褶、末端较圆滑的锥状突起。新型动物卵的发现暗示了早寒武世梅树村期动物化石卵的多样性很可能发端于新元古代埃迪卡拉纪。
Abstract:
The Cambrian small shelly fossils, which were diversified from the first episode of Cambrian life's explosion(Meishucunian Stage)in South China, were critical for understanding the origin of metazoans. Two specimens, which were the new types of Olivooids-like fossilized animal embryos, were recognized from a large amount of globular fossils at the first assemblage zone of Cambrian small shelly fossils from the Early Cambrian Kuanchuanpu Formation in Kuanchuanpu Region of Ningqiang County, Shaanxi Province. The embryos were characterized by numerous cone-like protuberances with spiral folds at the proximal part and distal smooth top end just beneath the egg shell, and remarkably different from those of typical or non-typical stellate spines of Punctatus Emeiensis. The diversity of eggs and embryos presented at the Meishucunian Stage were most likely rooted in the Neoproterozoic Ediaranian.

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备注/Memo

备注/Memo:
收稿日期:2010-01-25
基金项目: 国家大学生创新性实验计划项目(国200708)
作者简介: 侯笑晋(1987-),女,宁夏银川人,从事古生物学研究。E-mail:hxj2025@126.com
更新日期/Last Update: 2010-12-20