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Grey-cheeked Nunlet

Nonnula frontalis (Sclater, PL, 1854)

You can select up to 8 checklists to perform a comparison of taxonomic authorities for this taxon and related concepts:

You can also use one of the pre-defined group of taxonomic authorities below:

The table provided below compares authorities for this taxon and related concept. Names in red are those that differ from the name in the column located immediately to the left.
Species concept American Ornithologists' Union 1st edition (1886)American Ornithologists' Union 2nd edition (1895)American Ornithologists' Union 3rd edition (1910)American Ornithologists' Union 4th edition (1931)American Ornithologists' Union 5th edition (1957)American Ornithologists' Union 6th edition (1983)American Ornithologists' Union 7th edition (1998)American Ornithologists' Union 7th edition (incl. 60th suppl.)
* Nonnula frontalis  
 
 
 
 
 
 
 
 
 
 
 
 
 
Nonnula frontalis
Gray-cheeked Nunlet
Nonnula frontalis [frontalis or stulta]  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Nonnula frontalis frontalis  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Nonnula frontalis stulta  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Nonnula frontalis pallescens  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Nonnula [ruficapilla or frontalis]  
 
 
 
 
 
 
 
 
 
Nonnula ruficapilla
Gray-cheeked Nunlet
Nonnula ruficapilla
Gray-cheeked Nunlet
 
 
* Nonnula ruficapilla  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Nonnula ruficapilla ruficapilla  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Nonnula ruficapilla rufipectus  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Nonnula ruficapilla nattereri  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Nonnula ruficapilla inundata  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Nonnula ruficapilla [incl. pallescens]  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

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