Species, GC (%), AT (%), G (bases), C (bases), A (bases), T (bases), Maximum lifespan (yrs) Apalone ferox, 39.0, 61.0, 530, 164, 445, 640, 26.2, Apalone spinifera, 40.7, 59.3, 548, 176, 428, 627, 25.2, Caretta caretta, 40.0, 60.0, 548, 171, 439, 639, 37.0, Chelodina longicollis, 36.9, 63.1, 464, 188, 456, 659, 37.0, Chelonia mydas, 39.4, 60.6, 548, 163, 438, 657, 75.0, Chelus fimbriata, 38.8, 61.2, 520, 173, 440, 652, 35.8, Chelydra serpentina, 38.2, 61.8, 498, 191, 493, 624, 47.0, Chrysemys picta, 38.7, 61.3, 493, 207, 502, 607, 61.0, Cuora amboinensis, 40.3, 59.7, 536, 191, 468, 611, 38.2, Cuora flavomarginata, 39.0, 61.0, 519, 185, 495, 607, 19.1, Cuora trifasciata, 39.5, 60.5, 527, 186, 478, 615, 31.8, Cyclemys dentata, 38.4, 61.6, 513, 181, 492, 620, 14.7, Indotestudo forstenii, 38.8, 61.2, 533, 166, 456, 645, 32.9, Kinosternon leucostomum, 34.5, 65.5, 447, 178, 518, 666, 19.2, Lissemys punctata, 39.5, 60.5, 521, 182, 434, 642, 17.8, Macrochelys temminckii, 37.6, 62.4, 492, 185, 495, 628, 70.3, Malacochersus tornieri, 38.8, 61.2, 535, 164, 459, 645, 25.9, Manouria emys, 39.5, 60.5, 520, 188, 461, 622, 19.9, Mauremys japonica, 39.0, 61.0, 525, 179, 484, 618, 16.2, Mauremys mutica, 40.1, 59.9, 543, 181, 464, 618, 22.1, Notochelys platynota, 37.5, 62.5, 502, 176, 493, 635, 18.8, Palea steindachneri, 39.3, 60.7, 533, 166, 450, 630, 41.0, Pelomedusa subrufa, 39.4, 60.6, 528, 188, 488, 614, 20.1, Pelusios castaneus, 39.7, 60.3, 534, 188, 500, 596, 41.0, Platemys platycephala, 39.5, 60.5, 536, 164, 447, 626, 20.0, Platysternon megacephalum, 39.4, 60.6, 500, 215, 505, 595, 27.0, Sacalia bealei, 38.8, 61.2, 515, 186, 483, 622, 27.3, Sternotherus carinatus, 36.0, 64.0, 475, 174, 503, 651, 29.3, Testudo graeca, 38.6, 61.4, 514, 179, 467, 637, 127.0, Testudo kleinmanni, 39.6, 60.4, 532, 180, 459, 626, 21.0, Testudo marginata, 39.7, 60.3, 525, 186, 458, 622, 21.2, Trachemys scripta, 38.1, 61.9, 495, 201, 513, 618, 41.3, Trionyx triunguis, 41.9, 58.1, 565, 180, 406, 628, 50.6,