Species, GC (%), AT (%), G (bases), C (bases), A (bases), T (bases), Maximum lifespan (yrs) Alopias pelagicus, 38.6, 61.4, 4230, 2218, 4890, 5354, 29.0, Alopias superciliosus, 39.3, 60.7, 4307, 2262, 4837, 5313, 21.0, Carcharias taurus, 39.5, 60.5, 4415, 2212, 4820, 5326, 12.0, Carcharodon carcharias, 40.8, 59.2, 4498, 2326, 4801, 5119, 50.0, Cetorhinus maximus, 40.6, 59.4, 4411, 2359, 4742, 5158, 32.0, Isurus oxyrinchus, 43.2, 56.8, 4681, 2539, 4668, 4813, 25.0, Lamna ditropis, 41.8, 58.2, 4518, 2466, 4771, 4944, 20.0,