Phylogenetic position of Halaelurus burger Lamna ditropis (KF962053.1) was selected as the out group. The 29 species from the order Carcharhiniformes were: Carcharhinus acronotus (NC_024055.1), C. amblyrhynchoides (NC_023948.1), C. amboinensis (NC_026696.1), C. brevipinna (KM244770.1), C. leucas (KF646785.1), C. longimanus (NC_025520.1), C. macloti (NC_024862.1), C. melanopterus (NC_024284.1), C. obscurus (NC_020611.1), C. plumbeus (NC_024596.1), C. sorrah (NC_023521.1), C. tjutjot (KP091436.1) Galeocerdo cuvier (NC_022193.1), Loxodon macrorhinus (KT347599), Scoliodon laticaudus (KP336547.1), S. macrorhynchos (NC_018052.1), Glyphis glyphis (NC_021768.2), G. garricki (KF646786.1), Mustelus griseus (NC_023527.1), M. manazo (NC_000890.1), Cephaloscyllium umbratile (KT003686), Halaelurus burgeri (KU892589), Hemigaleus microstoma (KT003687), Hemipristis elongata (KU508621), Scyliorhinus canicula (NC_001950.1), Pseudotriakis microdon (NC_022735.1), Sphyrna lewini (NC_022679.1) and Sphyrna zygaena (NC_025778.1).