寒武纪三叶虫<i>Oryctocephalus indicus</i>(Reed, 1910)的蜕壳

陈贵英; 韩乃仁; 赵元龙

Volume 33 Issue 6

Jun. 2008

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CHEN Gui-ying, HAN Nai-ren, ZHAO Yuan-long, 2008. Moulting of the Cambrian Trilobite Oryctocephalus Indicus(Reed, 1910). Earth Science, 33(6): 783-792.

Citation:

CHEN Gui-ying, HAN Nai-ren, ZHAO Yuan-long, 2008. Moulting of the Cambrian Trilobite Oryctocephalus Indicus(Reed, 1910). Earth Science, 33(6): 783-792.

CHEN Gui-ying, HAN Nai-ren, ZHAO Yuan-long, 2008. Moulting of the Cambrian Trilobite Oryctocephalus Indicus(Reed, 1910). Earth Science, 33(6): 783-792.

Citation:

CHEN Gui-ying, HAN Nai-ren, ZHAO Yuan-long, 2008. Moulting of the Cambrian Trilobite Oryctocephalus Indicus(Reed, 1910). Earth Science, 33(6): 783-792.

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Moulting of the Cambrian Trilobite Oryctocephalus Indicus(Reed, 1910)

1.
Faculty of Earth Sciences, China University of Geosciences, Wuhan 430074, China
2.
Department of Resources and Environmental Engineering, Guilin University of Technology, Guilin 541004, China
3.
College of Resources and Environment of Guizhou University, Guiyang 550003, China

Received Date: 2008-07-25
Publish Date: 2008-11-25

Abstract

Abstract

Nineteen specimens of Oryctocephalus indicus (Reed, 1910) from the middle-upper part of Kaili Formation of Middle Cambrian in Jianhe County, southeastern Guizhou, South China, which are interpreted as exuvial configurations, are described.Most of them are missing cranidium, remains of the articulated exoskeleton are in original relation.The series of events which may have resulted in the production of these configurations are as follows: (1) The trilobite flexed the cephalon downward throuth a certain angle less than ninety degrees.During this flexing downward, the cephalon splited from the thorax as well as the facial suture opened, so that the free cheeks disarticulated from the cranidium. (2) The animal regained its planar orientation and resulted in the old cranidium rotated. (3) The trilobite crawled forward with the old exoskeleton and overturned the cranidium to inverted in front of the cephalon. (4) The inverted cranidium was pushed aside by the crawled forward animal. (5) The animal continued to crawl forward, kept shaking and withdrew from the old exoskeleton.Finally, the old exoskeleton was shed.On the exuviae, the thorax joined up with pygidium, the rostral-hypostomal plate and free cheeks located at their original site.It is different from the "Phacopid mode of ecdysis"or "Salterian embedding".
- trilobite,
- moulting,
- Oryctocephalus indicus,
- Cambrian,
- Guizhou

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References(27)

References

Geyer, G., Shergold, J. H., 2000. The quest for internationally recognized divisions of Cambrian time. Episodes, 23 (3): 188-195. doi: 10.18814/epiiugs/2000/v23i3/006

Han, N. R., Chen, G. Y., 2007. Moulting variability in the Devonian trilobite Ductina from Nandan, Guangxi, China. Acta Palaeontologica Sinica, 46 (2): 167-182 (in Chinese with English abstract).

Harrington, H. J., 1959. Treatise on invertebrate paleontology (in Moore). Part O, Arthropods 1, 1-560.

Jell, P. A., Hughes, N. C., 1999. Hi malayan Cambrian trilobiees. Special Paper in Palaeontology, 58: 7-113.

McNamara, K. J., Rudkin, D. M., 1984. Techniques of trilobite exuviation. Lethaia, 17, 153-173. doi: 10.1111/j.1502-3931.1984.tb01722.x

Peng, S. C., Zhu, X. J., Babcock, L. E., et al., 2004. Potential global stratotype sections and points in China for defining Cambrian stages and series. Geobios, 37 (2): 253-258. doi: 10.1016/j.geobios.2003.02.003

Sundberg, F. A., Yuan, J. L., McCollum, L. B., et al., 1999. Correlation of the Lower-mddle Cambrian boundary of South China and western United States of America. Acta Palaeontologica Sinica, 38 (Suppl. ): 102-107.

Whittington, H. B., 1995. Oryctocephalid trilobites from the Cambrian of North America. Palaeontology, 38 (3): 543-562.

Yang, R. J., Nie, K. S., Zhao, Y. L., 2005. Kaili Formation research in the Bashuiya section in Jianhe County and in the Zhusha section in Zhenyuan County—Research on the Auxiuary sections of the Wuliu section which is the strato-type latent boundany section in the Lower-Middle Cambrian. Journal of Guizhou University of Technology (Natural Science Edition), 34 (6): 12-16.

Yuan, J. L., Zhao, Y. L., Li, Y., et al., 2002. Trilobite fauna of the Kaili Formation (uppermost Lower Cambrianlower Middle Cambrian) from southeastern Guizhou, South China. Shanghai Science and Technology Press, Shanghai, 1-423 (in Chinese).

Yuan, J. L., Zhao, Y. L., Wang, Z. Z., et al., 1997. A preliminary study on Lower-Middle Cambrian boundary and trilobite fauna at Balang, Taijiang, Guizhou, South China. Acta Palaeontologica Sinica, 36 (4): 494-524 (in Chinese with English abstract).

Zhang, W. T., Lu, Y. H., Zhu, Z. L., et al., 1980. Cambrian trilobite faunas of southwestern China. Palaeontologia Sinica, Whole No. 159, New Series B, No. 16. Science Press, Beijing, 1-497 (in Chinese).

Zhang, Z. H., Shen, J. W., Gong, X. Y., et al., 1996. A preliminary discussion on preservation condition of Kaili fauna, Middle Cambrian, Taijiang, Guizhou. Acta Palaeontologica Sinica, 35 (5): 607-619 (in Chinese with English abstract).

Zhao, Y. L., Yuan, J. L., Huang, Y. Z., et al., 1994. Middle Cambrian Kaili fauna in Taijiang, Guizhou. Acta Palaeontologica Sinica, 33 (3): 263-271 (in Chinese with English abstract).

Zhao, Y. L., Yuan, J. L., Peng, S. C., et al., 2004. Proposal and prospects for the global Lower-Middle Cambrian boundary. Progress in Natural Science, 14 (12): 1033-1038. doi: 10.1080/10020070412331344771

Zhao, Y. L., Yuan, J. L., Peng, S. C., et al., 2006. Arestudy of Oryctocephalus indicus (Reed, 1910). Progress in Natural Science, 16 (11): 1177-1182.

Zhao, Y. L., Yuan, J. L., Zhang, Z. H., et al., 1993. A preliminary study of the Kaili Formation in the transitional area in South China and its synchronous strata. Journal of Stratigraphy, 17 (3): 171-178 (in Chinese with English abstract).

Zhao, Y. L., Yuan, J. L., Zhu, L. J., et al., 1996. The division of the Lower-Middle Cambrian boundary in China. Journal of Guizhou University of Technology, 25 (4): 15-20 (in Chinese with English).

韩乃仁, 陈贵英, 2007. 广西南丹中泥盆世三叶虫Ductina的蜕壳. 古生物学报, 46 (2): 167-182. doi: 10.3969/j.issn.0001-6616.2007.02.002

杨荣军, 聂开省, 赵元龙, 2005. 贵州剑河巴水崖、镇远朱砂凯里组研究——八郎潜在的国际中、下寒武统层型剖面的辅助剖面. 贵州工业大学学报(自然科学版), 34 (6): 12-16. https://www.cnki.com.cn/Article/CJFDTOTAL-GZGX200506004.htm

袁金良, 赵元龙, 李越, 等, 2002. 黔东南早、中寒武世凯里组三叶虫动物群. 上海: 上海科学技术出版社, 1-423, 图版1-68.

袁金良, 赵元龙, 王宗哲, 等, 1997. 贵州台江八郎下、中寒武统界线及三叶虫动物群. 古生物学报, 36 (4): 494-524. https://www.cnki.com.cn/Article/CJFDTOTAL-GSWX704.009.htm

张文堂, 卢衍豪, 朱兆玲, 等, 1980. 西南地区寒武纪三叶虫动物群. 中国古生物志, 新乙种第16号. 北京: 科学出版社, 1-497, 图版1-34.

张正华, 沈建伟, 龚显英, 等, 1996. 贵州台江中寒武世凯里动物群保存环境初探. 古生物学报, 35 (5): 607-619. https://www.cnki.com.cn/Article/CJFDTOTAL-GSWX605.007.htm

赵元龙, 袁金良, 黄友庄, 等, 1994. 贵州台江中寒武世凯里动物群. 古生物学报, 33 (3): 263-271. https://www.cnki.com.cn/Article/CJFDTOTAL-GSWX605.007.htm

赵元龙, 袁金良, 张正华, 等, 1993. 华南过渡区凯里组及同期地层的初步研究. 地层学杂志, 17 (3): 171-178. https://www.cnki.com.cn/Article/CJFDTOTAL-DCXZ199303001.htm

赵元龙, 袁金良, 朱立军, 等, 1996. 中国中、下寒武统界线的划分. 贵州工业大学学报, 25 (4): 15-20. https://www.cnki.com.cn/Article/CJFDTOTAL-GZGX604.001.htm

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Moulting of the Cambrian Trilobite Oryctocephalus Indicus(Reed, 1910)

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