 Natura - nature | | Mundus Plinius - physical world | | Naturalia | | Biota | | Domain Eukaryota - eukaryotes | | Kingdom Animalia C. Linnaeus, 1758 - animals | | Subkingdom Bilateria (Hatschek, 1888) Cavalier-Smith, 1983 - bilaterians | | Branch Deuterostomia Grobben, 1908 - deuterostomes | | Infrakingdom Chordonia (Haeckel, 1874) Cavalier-Smith, 1998 | | Phylum Chordata Bateson, 1885 - chordates | | Subphylum Vertebrata Cuvier, 1812 - vertebrates | | Infraphylum Gnathostomata auct. - jawed vertebrates | | Superclass Tetrapoda Goodrich, 1930 - tetrapods | | Class Amphibia C. Linnaeus, 1758 - amphibians | | Subclass Lissamphibia Haeckel, 1866 |  Order Gymnophiona Rafinesque, 1814 - caecilians |  Family Rhinatrematidae Nussbaum, 1977 | | Family Ichthyophiidae Taylor, 1968 |  [Family Ichthyophidae] see Family Ichthyophiidae Taylor, 1968 | | [Family Uraeotyphlidae Nussbaum, 1979] see Family Ichthyophiidae Taylor, 1968 | | Family †Eocaeciliaidae | | Family Caeciliidae Rafinesque, 1814 | | [Family Caeciliaidae] see Family Caeciliidae Rafinesque, 1814 | | [Family Typhlonectidae] see Subfamily Typhlonectinae Taylor, 1968 | | [Family Scolecomorphidae Taylor, 1969] see Subfamily Scolecomorphinae Taylor, 1969 |
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