[Neoselachii] Compagno, 1977 - modern sharks and rays see Cohort Neoselachii Compagno, 1977 Order Carcharhiniformes Compagno, 1973 - ground sharks Family Carcharhinidae Jordan & Evermann, 1896 - requiem sharks Genus Rhizoprionodon Whitley, 1929 Rhizoprionodon acutus (Rüppell, 1837) - grey dog shark