Species, GC (%), AT (%), G (bases), C (bases), A (bases), T (bases), Maximum lifespan (yrs) Ambystoma mexicanum, 31.3, 68.7, 62, 31, 108, 96, 17.0, Ambystoma texanum, 32.7, 67.3, 62, 35, 108, 92, 13.8, Ambystoma tigrinum, 32.0, 68.0, 63, 32, 108, 94, 25.0, Andrias davidianus, 34.0, 66.0, 60, 41, 107, 89, 19.9, Andrias japonicus, 36.0, 64.0, 64, 43, 104, 86, 55.0, Batrachuperus mustersi, 32.3, 67.7, 56, 40, 113, 88, 11.0, Bombina orientalis, 49.2, 50.8, 94, 52, 85, 66, 15.8, Bombina variegata, 50.2, 49.8, 97, 52, 84, 64, 29.0, Dermophis mexicanus, 35.1, 64.9, 65, 37, 95, 94, 13.8, Gyrinophilus porphyriticus, 39.1, 60.6, 86, 30, 88, 92, 18.5, Hemidactylium scutatum, 34.0, 65.7, 64, 37, 95, 100, 8.9, Hyla japonica, 39.3, 60.7, 82, 37, 101, 83, 8.9, Hynobius leechii, 32.7, 67.3, 61, 36, 109, 91, 7.1, Hynobius nebulosus, 32.0, 68.0, 57, 38, 113, 89, 14.2, Kaloula pulchra, 43.2, 56.8, 84, 39, 82, 80, 11.0, Microhyla ornata, 37.2, 62.8, 73, 33, 101, 78, 5.0, Onychodactylus fischeri, 32.3, 67.7, 61, 35, 108, 93, 17.0, Phaeognathus hubrichti, 34.7, 65.3, 68, 35, 109, 85, 19.7, Plethodon cinereus, 36.7, 63.3, 75, 34, 105, 83, 25.0, Plethodon elongatus, 37.0, 63.0, 73, 37, 104, 83, 13.3, Proteus anguinus, 45.5, 54.5, 90, 45, 84, 78, 102.0, Pseudotriton ruber, 34.7, 65.3, 71, 32, 97, 97, 20.1, Rana nigromaculata, 43.5, 56.5, 81, 43, 91, 70, 15.0, Salamandrella keyserlingii, 33.7, 66.3, 59, 41, 112, 85, 8.0, Triturus carnifex, 41.4, 58.6, 77, 46, 83, 91, 11.0, Triturus cristatus, 39.4, 60.6, 71, 46, 88, 92, 28.0, Triturus marmoratus, 42.4, 57.6, 81, 45, 76, 95, 25.0, Tylototriton verrucosus, 41.8, 58.2, 82, 42, 83, 90, 11.0, Xenopus laevis, 36.7, 63.3, 71, 38, 98, 90, 30.3,