http://www.philaprintshop.com/images/bloc120.jpg

 

http://www.tudiscovery.com/tiburones/que_es/popup_que/asset/07914907646434433_elephant_shark_380x290.jpg

 

http://www.sharkfriends.com/iniopteryx.jpg

 


picture from:http://www.paleopress.net

 

 

 

 

 

 

 

 

 

자료를 찾아봤습니다. 도움이 되시길.