Activity Joey McGinn posted a new specimen. 3 years, 7 months ago 3 years, 7 months ago 3 years, 7 months ago Joey McGinn has contributed specimen mFeM 53663 to myFOSSIL! Bill Heim replied 1 year, 2 months ago Not a bull shark, but without a closer image, it is impossible to say what species of Carcharhinus. Also a finger does not suffice as a scale (fingers come in different sizes). A simple ruler could be used instead.