Here is a photo 15 various Mako teeth I have collected at Calvert Cliffs. I have been sticking them in a baggy marked Makos, but now I want to display them with the correct labels. The Isurus vs. Cosmopolitodus hastalis thing is confusing for a newbie, as is correctly identifying Broad vs. Narrow vs. Longfin. (Are there others besides these three types Makos at Calvert?)
Does anyone want to take a stab at identifying these, or tell me what features I should look for to differentiate them?
Thanks!