Species, GC (%), AT (%), G (bases), C (bases), A (bases), T (bases), Maximum lifespan (yrs) Latimeria chalumnae, 43.6, 56.4, 101, 51, 92, 105, 48.0, Lepidosiren paradoxa, 36.8, 63.2, 73, 56, 133, 89, 8.3, Neoceratodus forsteri, 45.3, 54.7, 119, 59, 99, 116, 19.7, Protopterus annectens, 37.9, 62.1, 85, 46, 125, 90, 18.0,