Species, GC (%), AT (%), G (bases), C (bases), A (bases), T (bases), Maximum lifespan (yrs) Aetobatus flagellum, 40.9, 59.1, 5469, 2787, 5693, 6252, 16.0, Pteroplatytrygon violacea, 40.6, 59.4, 4759, 2413, 5058, 5435, 24.0,