The Nano Membrane-Like Structure of the Precambrian Microfossils under Atomic Force Microscope (AFM)

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Abstract:

Weng`an fauna in Guizhou, China provides a unique window for the evolution of the early life especially since the animal embryos and sponge is found there. Phosphatization makes the fossils preserve in details including cells and subcellular structure. Here we use atomic force microscope observing the surface of some three dimensional preserved embryo fossils and the ultra membrane-like structure is found under atomic force microscope (AFM) while such structure can`t be found under scanning electron microscope (SEM). The membrane-like structure is approximately 10nm in thickness which maybe one part of the fossil embryos or belong to another nano scale microfossils. Therefore, AFM provides a new method for the study of the ultra structure of the microfossils from Weng`an fauna.

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Solid State Phenomena (Volumes 121-123)

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739-742

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March 2007

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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[1] C. Li, J. Chen and T. Hua: Science Vol. 279(1998), pp.879-882.

Google Scholar

[2] S. Xiao, Y. Zhang and A. H. Knoll: Nature Vol. 201(1998), pp.553-558.

Google Scholar

[3] S. Xiao, X. Yuan and A. H. Knoll: PNAS Vol. 97(2000), pp.13684-13689.

Google Scholar

[4] J. Chen, P. Oliveri, C. Li, G. Zhou, F. Gao, J.W. Hagadom, K.J. Peterson and E.H. Davidson: PNAS Vol. 97(2000), pp.4457-4462.

Google Scholar

[5] J. Chen, P. Oliveri, F. Gao , S. Q. Dornbos , C. Li, D. J. Bottjer and E.H. Davidson: Developmental Biology Vol. 248(2002), pp.182-196.

DOI: 10.1006/dbio.2002.0714

Google Scholar

[6] W. Altermann, A. Kempe, W.M. Heckl: Geophysical Research Abstracts Vol. 5(2003), p.01088.

Google Scholar

[7] A. E. Pelling, S. Sehati and E. B. Gralla, J. S. Valentine and J. K. Gimzewski: Science Vol. 305(2004), pp.1147-1150.

DOI: 10.1126/science.1097640

Google Scholar

[8] M. S. Lavine: Science Vol. 304(2004), pp.651-653.

Google Scholar

[9] A.V. Kimel, A. Kirilyuk, A. Tsvetkov, R.V. Pisarev and Th. Rasing: Nature Vol. 429(2004), pp.850-853.

DOI: 10.1038/nature02659

Google Scholar

[10] A. Kempe, J. W. Schopf, W. Altermann, A.B. Kudryavtsev and M. Wolfgang: PNAS Vol. 99(2002), pp.9117-9120.

Google Scholar

[11] Y. Dauphin: Int J Earth Sci (Geol Rundsch) Vol. 91(2002), pp.1071-1080.

Google Scholar

[12] J. Chen, D. J. Bottjer, P. Oliveri, S. Q. Dornbos, F. Gao, S. Ruffins, H. Chi, C. Li and E.H. Davidson: Science Vol. 305(2004), pp.218-222.

DOI: 10.1126/science.1099213

Google Scholar

[13] S. Xiao and A. H. Knoll: Lethia Vol. 32(1999), pp.219-241.

Google Scholar

[14] S. Bengtson and Y. Zhao: Science Vol. 277(1997), pp.1645-1648.

Google Scholar

[15] H. Chi, J. Chen and C. Li: Acta Palaeontologica Sinica Vol. 42(2003), pp.448-451.

Google Scholar