As Pleistocene sharks are very similar to or even identical with the recent species, I would suggest to start with works on recent species. Some suggestions:

Compagno, L. J. V.  1984. FAO species catalogue. Vol. 4. Sharks of the World. An annotated and illustrated catalogue of shark species known to date. Part 1 - Hexanchiformes to Lamniformes. i-viii + 1-249.

Compagno, L. J. V.  1984. FAO species catalogue. Vol. 4. Sharks of the world. An annotated and illustrated catalogue of shark species known to date. Part 2. Charcharhiniformes. FAO (Food and Agriculture Organization of the United Nations) Fisheries Synopsis No. 125, v. 4 (pt 2): 251-655.

Compagno, L. J. V.  2001. Sharks of the world. An annotated and illustrated catalogue of shark species known to date. Volume 2. Bullhead, mackerel and carpet sharks (Heterodontiformes, Lamniformes and Orectolobiformes). FAO Species Catalogue for Fishery Purposes. No. 1 (vol. 2): i-viii + 1-269

Ebert, D. A. 2013. Deep-sea cartilaginous fishes of the Indian Ocean. Volume 1 - sharks. FAO Species Catalogue for Fishery Purposes, Rome, 8 (1): 1-256.

Thanks for your information, Sir

Greetings!

I'm just a shark tooth enthusiast. I use a few books, keys and online guides to identify shark teeth I find near Venice, Florida, United States.

Book: Fossil Shark Teeth of the World (Joe Cocke). You can buy this at http://www.amazon.com/Fossil-Shark-Teeth-World-Cocke/dp/0971538131/ref=sr_1_1?s=books&ie=UTF8&qid=1463677819&sr=1-1&keywords=fossil+shark+teeth

https://www.flmnh.ufl.edu/fish/discover/sharks/fossil-sharks/shark-tooth-id-guide/

http://www.elasmo-research.org/education/evolution/guide_f.htm

http://paleobiology.si.edu/pdfs/sharktoothKey.pdf  (also attached).

The key I've attached also has a good bibliography, included some of the references cited in the previous response by Dr. Fricke.

Good Luck!

Shannon

Thank you very much Mrs. Shannon for link about fosil shark teeth. I'll try to learn it :)