Species, GC (%), AT (%), G (bases), C (bases), A (bases), T (bases), Maximum lifespan (yrs) Gyrinophilus porphyriticus, 40.6, 59.4, 201, 117, 239, 227, 18.5, Hemidactylium scutatum, 39.4, 60.6, 173, 136, 250, 225, 8.9, Phaeognathus hubrichti, 36.1, 63.9, 163, 120, 272, 229, 19.7, Plethodon cinereus, 40.6, 59.4, 194, 124, 242, 224, 25.0, Plethodon elongatus, 37.5, 62.5, 170, 124, 274, 216, 13.3, Pseudotriton ruber, 39.4, 60.6, 191, 118, 250, 225, 20.1,