Spiny Sharks

Summary[edit] Description: Acanthodes bronni, an acanthodian from the Early Permian of Germany, pencil drawing Ref : Janvier, P. (2001) "Ostracoderms and the shaping of gnathostome characters" in Ahlberg, P.E. , ed. Major Events in Early Vertebrate Evolution: Palaeontology, Phylogeny, Genetics and Development, CRC Press, p. 175 Retrieved on 11 January 2009. ISBN: 0415233704. Date: 13 August 2007. Source: Own work. Author: Nobu Tamura (http://spinops.blogspot.com). Permission(Reusing this file): All illustrations on this site are copyrighted to Nobu Tamura. The low resolution versions of the images are licensed under Creative Commons Attribution-ShareAlike (CC BY-SA) license meaning that you are free to use them as long as you properly credit the author (© N. Tamura). High resolution versions are available upon request..

photograph of latex peel