http://www.dutchsharksociety.org/ http://www.thefossilforum.com/index.php?/topic/10818-heterorodontie-of-s... http://www.elasmo-research.org/education/topics/lh_unborn.htm http://www.bbk.ac.uk/geology/news/nerc-grant-for-charlie-underwoods-rese...
