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Note: Cosmopolitodus is now Carcharodon. The images are clickable which brings up a page on the genus (including ones not found in STH). I don’t believe there are any Negaprion found in STH.
As for your image: A5 is Isurus oxyrinchus, the remainder of the A row I would have to examine in person; B3, B4, B5 are Carcharhinus; C row is Carcharodon hastalis; D2, D3 are lower C. hastalis; D4 is lower C. planus; E4, E5 are C. hastalis, the remainder I would have to see; F1, F3, F4, F5 are C. hastalis, F2 is lower C. planus.
I recommend looking at the extant (modern) dentitions as a guide to separating genera: http://www.elasmo.com/frameMe.html?file=paleo/sth/shrkhill_new.html&menu=bin/menu_fauna-alt.html