Rhizoprionodon Temporal range: 53–0 Ma[1] PreꞒ Ꞓ O S D C P T J K Pg N Early Eocene to Present
Milk shark (R. acutus)
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Chondrichthyes
Subclass:	Elasmobranchii
Subdivision:	Selachimorpha
Order:	Carcharhiniformes
Family:	Carcharhinidae
Genus:	Rhizoprionodon Whitley, 1929
Type species
Carcharias (Scoliodon) crenidens Klunzinger, 1879
Synonyms
Protozygaena Whitley, 1940 Rhizoprion Ogilby, 1915

Rhizoprionodon is a genus of requiem sharks, and part of the family Carcharhinidae, commonly known as sharpnose sharks because of their long, pointed snouts.

Species

• Rhizoprionodon acutus (Rüppell, 1837) (milk shark)
• Rhizoprionodon lalandii (J. P. Müller & Henle, 1839) (Brazilian sharpnose shark)
• Rhizoprionodon longurio (D. S. Jordan & C. H. Gilbert, 1882) (Pacific sharpnose shark)
• Rhizoprionodon oligolinx V. G. Springer, 1964 (grey sharpnose shark)
• Rhizoprionodon porosus (Poey, 1861) (Caribbean sharpnose shark)
• Rhizoprionodon taylori (Ogilby, 1915) (Australian sharpnose shark)
• Rhizoprionodon terraenovae (J. Richardson, 1836) (Atlantic sharpnose shark)