It contains two species:[2]
More information Common name, Scientific name and subspecies ...
Genus Ramphomicron  – Bonaparte, 1850 – two species
| Common name | 
Scientific name and subspecies | 
Range | 
Size and ecology | 
IUCN status and estimated population | 
| Black-backed thornbill
  
  | 
Ramphomicron dorsale  Salvin & Godman, 1880 | 
Colombia
   | 
Size: 
  Habitat: 
  Diet: | 
 EN 
   
  | 
| Purple-backed thornbill
  
  | 
Ramphomicron microrhynchum  (Boissonneau, 1840)
 
 
- R. m. andicola Simon (1921)
 - R. m. microrhynchum Boissonneau (1840)
 - R. m. albiventre Carriker (1935)
 - R. m. bolivianum Schuchmann (1984)
  
  | 
Bolivia, Colombia, Ecuador, Peru, and Venezuela
   | 
Size: 
  Habitat: 
  Diet: | 
 LC 
   
  | 
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