tyler keenansays
wow what egcatly are these though? like what did they do?
mosasaurfiendsays
They think they protected the shark perhaps from predators. Those are about 305 mya. They were on the skin of the shark. I am going to leave a link that explains further...
http://en.wikipedia.org/wiki/Dermal_denticle
mosasaurfiendsays
Here is a pic that shows denticles.. http://www.aquariumofpacific.org/images/olc/bowheadshin_enoshima_aq600x416.jpg
tyler keenansays
cool!
Fossil Huntresssays
A very beutiful collection indeed!