Species, GC (%), AT (%), G (bases), C (bases), A (bases), T (bases), Maximum lifespan (yrs) Aetobatus flagellum, 43.8, 56.2, 367, 134, 325, 317, 16.0, Alopias pelagicus, 41.2, 58.8, 333, 139, 342, 331, 29.0, Alopias superciliosus, 41.8, 58.2, 338, 141, 343, 323, 21.0, Amblyraja radiata, 42.9, 57.1, 336, 154, 353, 300, 16.0, Callorhinchus capensis, 34.2, 65.8, 251, 139, 430, 320, 12.0, Callorhinchus milii, 33.9, 66.1, 246, 140, 436, 318, 6.0, Carcharhinus acronotus, 39.0, 61.0, 310, 137, 377, 321, 19.0, Carcharhinus brevipinna, 40.7, 59.3, 328, 138, 357, 322, 19.0, Carcharhinus leucas, 39.0, 61.0, 311, 136, 377, 321, 32.0, Carcharhinus obscurus, 39.9, 60.1, 319, 138, 368, 320, 35.0, Carcharhinus plumbeus, 40.3, 59.7, 318, 143, 367, 317, 32.0, Carcharhinus sorrah, 40.5, 59.5, 329, 135, 357, 324, 8.0, Carcharias taurus, 41.7, 58.3, 341, 137, 348, 319, 12.0, Carcharodon carcharias, 43.5, 56.5, 352, 146, 344, 304, 50.0, Cetorhinus maximus, 44.2, 55.8, 363, 143, 330, 310, 32.0, Chiloscyllium plagiosum, 39.7, 60.3, 325, 129, 353, 338, 25.0, Chimaera monstrosa, 40.6, 59.4, 314, 150, 369, 311, 29.4, Galeocerdo cuvier, 37.8, 62.2, 301, 132, 387, 325, 50.0, Hemitriakis japanica, 42.1, 57.9, 339, 143, 359, 305, 15.0, Heterodontus francisci, 43.1, 56.9, 362, 132, 338, 314, 12.0, Lamna ditropis, 44.2, 55.8, 356, 150, 342, 297, 20.0, Leucoraja erinacea, 40.5, 59.5, 320, 143, 369, 311, 8.0, Mustelus griseus, 41.5, 58.5, 332, 143, 369, 301, 9.0, Mustelus manazo, 40.2, 59.8, 310, 151, 384, 301, 10.0, Notorynchus cepedianus, 40.3, 59.7, 334, 127, 363, 321, 49.0, Prionace glauca, 38.4, 61.6, 304, 136, 380, 325, 20.0, Pteroplatytrygon violacea, 43.1, 56.9, 358, 135, 341, 309, 24.0, Raja rhina, 44.3, 55.7, 354, 152, 341, 296, 26.0, Rhincodon typus, 38.8, 61.2, 309, 135, 351, 350, 54.0, Scyliorhinus canicula, 38.7, 61.3, 293, 150, 390, 311, 12.0, Sphyrna lewini, 41.0, 59.0, 333, 137, 350, 325, 35.0, Squalus acanthias, 40.5, 59.5, 310, 154, 373, 309, 75.0, Triaenodon obesus, 40.1, 59.9, 321, 138, 364, 322, 25.0,