| Species (N=33) | 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 |