Shark Research Sources and proposal

Here is my basic proposal for this Pop up exhibition:

Here are links for the sources I have been and will be using to gather information for my proposed pop up exhibition on sharks and evolution. I ought to have Harvard referenced them but I did not see the time spent doing this as profitable overall in terms of using my time wisely.

http://www.elasmo-research.org/education/evolution/geologic_time.htm

http://www.elasmo-research.org/education/evolution/ancient.htm

http://www.elasmo-research.org/education/evolution/origin_modern.htm

http://www.nature.com/nature/journal/v509/n7502/full/nature13195.html

nature article indicates how they're not living fossils (like crocodiles) but have evolved extensively

hammerhead is one of the most recently evolved

hammerhead fact is from this link http://www.elasmo-research.org/education/evolution/rise_modern.htm

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2866656/ this link is about size of Megalodon

http://onlinelibrary.wiley.com/doi/10.1111/j.1469-7998.2008.00494.x/abstract;jsessionid=26B49659F6E85D1CB08E420B1C39187C.f01t01 this link is about prey of great whites and megalodon - marine mammals

this link tells how many species http://www.elasmo.com/frameMe.html?file=selachin/fao/shark_gn.html&menu=bin/menu_topics-alt.html 470 species across 13 orders

http://www.sciencedirect.com/science/article/pii/S0003347209002668