fish
   Anabantiformes
   Anguilliformes
   Atheriniformes
   Characiformes
     Alestoidea
     Anostomoidea
     Characoidea
       Acestrorhynchidae
       Bryconidae
       Chalceidae
       Characidae
         Aphyocharacinae
         Aphyoditeinae
         Brachychalcinus
         Characinae
         Cheirodontinae
         Exodontinae
         Gymnocharacinae
         Jupiaba
         Stethaprioninae
         Stevardiinae
           Acrobrycon
           Boehlkea
           Bryconamericus
           Chrysobrycon
           Creagrutus
           Cyanogaster
           Eretmobrycon
           Hemibrycon
           Knodus
           Markiana
           Mimagoniates
             microlepis
           Piabina
           Trochilocharax
           Tyttocharax
         Tetragonopterinae
         misc
       Crenuchidae
       Ctenoluciidae
       Gasteropelecidae
       Hepsetidae
       Iguanodectidae
       Lebiasinidae
       Parodontidae
       Triportheidae
     Citharinoidei
     Curimatoidea
     Erythrinoidea
   Cichlidae
   Cypriniformes
   Cyprinodontiformes
   Gobiiformes
   Perciformes
   Siluriformes
   Synbranchiformes
   more
inverts
plants
misc