Placodermi
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Keluarga ikan berperisai dan placoderma

Referensi
http://www.btinternet.com/~vendian/FOSSILWEB/new_page_7.htm
Myers, P., R. Espinosa, C. S. Parr, T. Jones, G. S. Hammond, and T. A. Dewey. 2008. The Animal Diversity Web (online). Accessed January 13, 2009 at http://animaldiversity.org.
http://commons.wikimedia.org/wiki/Category:Placodermi

Sumber gambar : http://www.mansfield.ohio-state.edu/~sabedon/campbl34.htm

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