The genus Lybius is evidently paraphyletic (Moyle 2004) with respect to Tricholaema. The large, “toothed” barbets Brown-breasted Barbet Lybius melanopterus, Black-backed Barbet Lybius minor, Double-toothed Barbet Lybius bidentatus, Bearded Barbet Lybius dubius, and Black-breasted Barbet Lybius rolleti share similarities in voice and sexual dimorphism and are now placed by WGAC in Pogonornis, as Pogonornis melanopterus, Pogonornis minor, Pogonornis bidentatus, Pogonornis dubius, and Pogonornis rolleti.
Clements, J. F., P. C. Rasmussen, T. S. Schulenberg, M. J. Iliff, T. A. Fredericks, J. A. Gerbracht, D. Lepage, A. Spencer, S. M. Billerman, B. L. Sullivan, and C. L. Wood. 2023. The eBird/Clements checklist of Birds of the World: v2023. Downloaded from https://www.birds.cornell.edu/clementschecklist/download/ (Link)
Unintended disagreements occur when a parent (B) is
thinned by swapping a child (E) to another part of the
taxonomic tree, resulting in existing IDs of the parent being interpreted
as disagreements with existing IDs of the swapped child.
Identification
ID 2 of taxon E will be an unintended disagreement with ID 1 of taxon B after the taxon swap
If thinning a parent results in more than 10 unintended disagreements, you
should split the parent after swapping the child to replace existing IDs
of the parent (B) with IDs that don't disagree.
