BioStor
 | Proceedings of Learned Societies (1842) Annals And Magazine of Natural History 9: 503-518 |
 | March 28, 1867 George Busk (1867) Proceedings of The Zoological Society of London 1867: 315-391 |
 | Generic names applied to birds during the years 1906 to 1915, inclusive, with additions and corrections to Waterhouse's "Index Generum Avium" Charles W Richmond (1917) Proceedings of The United States National Museum 53: 565-636 |
 | The palatine process of the premaxilla in the Passeres; a study of variation, function, evolution and taxonomic value of single character throughout an avian order W J Bock (1960) Bulletin of The Museum of Comparative Zoology 122: 359-488 |
 | The anatomy and systematic position of the antpipits Conopophaga. and Corythopis Peter L Ames, Mary A Heimerdinger and Stuart L Warter (1968) Postilla 114: 1-32 |