| Species (N=5) | GC (%) | AT (%) | G (bases) | C (bases) | A (bases) | T (bases) | Maximum lifespan (yrs) |
|---|---|---|---|---|---|---|---|
| Batrachuperus mustersi | 33.1 | 66.9 | 135 | 93 | 225 | 235 | 11.0 |
| Hynobius leechii | 33.5 | 66.5 | 137 | 93 | 223 | 234 | 7.1 |
| Hynobius nebulosus | 33.6 | 66.4 | 139 | 92 | 216 | 240 | 14.2 |
| Onychodactylus fischeri | 31.9 | 68.1 | 131 | 88 | 233 | 235 | 17.0 |
| Salamandrella keyserlingii | 33.9 | 66.1 | 138 | 95 | 222 | 233 | 8.0 |