From my attempts to get information about the types of sharks matched to centra has not been successful. I understand that it is complicated and one reference said there were 14 specifics to ID but it did not provide those criteria. I want to display these shark centra for a "Shark Week" display for the Natural History society of Maryland. Any information that TFF can provide me would be helpful. There are 3 differing pattern on the sides of the centra as shown in the attached pictures. Can we associate any of these types with the megalodon shark? Thanks for your help.