kingdom: Animalia >
phylum: Chordata >
subphylum: Vertebrata >
infraphylum: Gnathostomata >
parvphylum: Osteichthyes >
megaclass: Tetrapoda >
class: Amphibia >
order: Gymnophiona >
family: Typhlonectidae Taylor, 1968 >
genus: Chthonerpeton Peters, 1880 >