 
			| Species (N=34) | GC (%) | AT (%) | G (bases) | C (bases) | A (bases) | T (bases) | Maximum lifespan (yrs) | 
|---|---|---|---|---|---|---|---|
| Apalone ferox | 37.4 | 62.6 | 353 | 228 | 420 | 552 | 26.2 | 
| Apalone spinifera | 38.1 | 61.9 | 354 | 234 | 414 | 543 | 25.2 | 
| Caretta caretta | 39.4 | 60.6 | 369 | 240 | 387 | 550 | 37.0 | 
| Carettochelys insculpta | 39.0 | 61.0 | 367 | 236 | 403 | 541 | 38.4 | 
| Chelodina longicollis | 37.7 | 62.3 | 353 | 229 | 401 | 559 | 37.0 | 
| Chelonia mydas | 38.7 | 61.3 | 365 | 234 | 392 | 558 | 75.0 | 
| Chelus fimbriata | 38.6 | 61.4 | 364 | 234 | 395 | 555 | 35.8 | 
| Chelydra serpentina | 38.2 | 61.8 | 351 | 239 | 416 | 540 | 47.0 | 
| Chrysemys picta | 37.7 | 62.3 | 340 | 243 | 426 | 539 | 61.0 | 
| Cuora amboinensis | 38.5 | 61.5 | 351 | 245 | 410 | 541 | 38.2 | 
| Cuora flavomarginata | 37.6 | 62.4 | 343 | 240 | 415 | 552 | 19.1 | 
| Cuora trifasciata | 38.6 | 61.4 | 355 | 243 | 407 | 545 | 31.8 | 
| Cyclemys dentata | 37.4 | 62.4 | 345 | 234 | 417 | 549 | 14.7 | 
| Indotestudo forstenii | 38.8 | 61.2 | 355 | 242 | 393 | 547 | 32.9 | 
| Kinosternon leucostomum | 37.0 | 63.0 | 338 | 233 | 414 | 557 | 19.2 | 
| Lissemys punctata | 39.0 | 61.0 | 368 | 236 | 403 | 543 | 17.8 | 
| Macrochelys temminckii | 38.0 | 62.0 | 348 | 239 | 418 | 539 | 70.3 | 
| Malacochersus tornieri | 38.9 | 61.1 | 377 | 247 | 414 | 568 | 25.9 | 
| Manouria emys | 38.3 | 61.7 | 359 | 235 | 406 | 551 | 19.9 | 
| Mauremys japonica | 38.2 | 61.8 | 356 | 238 | 411 | 549 | 16.2 | 
| Mauremys mutica | 37.3 | 62.7 | 344 | 235 | 419 | 553 | 22.1 | 
| Notochelys platynota | 37.6 | 62.4 | 347 | 235 | 419 | 547 | 18.8 | 
| Palea steindachneri | 38.0 | 62.0 | 347 | 239 | 417 | 538 | 41.0 | 
| Pelomedusa subrufa | 38.2 | 61.8 | 340 | 243 | 418 | 525 | 20.1 | 
| Pelusios castaneus | 38.7 | 61.3 | 354 | 236 | 415 | 519 | 41.0 | 
| Platemys platycephala | 38.1 | 61.9 | 359 | 228 | 404 | 549 | 20.0 | 
| Platysternon megacephalum | 37.5 | 62.5 | 346 | 236 | 411 | 558 | 27.0 | 
| Sacalia bealei | 38.1 | 61.9 | 347 | 243 | 412 | 545 | 27.3 | 
| Sternotherus carinatus | 37.6 | 62.4 | 347 | 234 | 406 | 560 | 29.3 | 
| Testudo graeca | 39.2 | 60.8 | 362 | 243 | 401 | 536 | 127.0 | 
| Testudo kleinmanni | 39.0 | 61.0 | 362 | 243 | 412 | 536 | 21.0 | 
| Testudo marginata | 39.5 | 60.5 | 361 | 247 | 401 | 531 | 21.2 | 
| Trachemys scripta | 38.1 | 61.9 | 349 | 242 | 420 | 541 | 41.3 | 
| Trionyx triunguis | 39.5 | 60.5 | 373 | 235 | 391 | 539 | 50.6 | 
