• Phylogenetic placement: Passeri: Climacterida
• Distribution: Australia and New Guinea
• Number of extant genera: 2
• Number of extant species: 7

Traditional genus-level classification of extant Climacteridae following the AviList checklist v2025. (link) The number of subspecies is given in parentheses. The two-genera arrangement is based on Ericson et al. (2002), Barker et al. (2004), and Oliveros et al. (2019). The phylogeny matches that of the BOW Phylogeny Explorer tree v1.6. (link) 

References [annotated]

Barker FK, Cibois A, Schikler P, Feinstein J, and Cracraft J (2004), Phylogeny and diversification of the largest avian radiation, Proc. Natl. Acad. Sci. U.S.A. 101, 11040-45. (including supporting information) (pdf) [note: provided an undated phylogeny of Passeriformes, including Climacteris erythrops, C. picumnus and Cormobates leucophaea]

Ericson PGP, Christidis L, Irestedt M, and Norman JA (2002), Systematic affinities of the lyrebirds (Passeriformes: Menura), with a novel classification of the major groups of passerine birds, Mol. Phylogenet. Evol. 25, 53-62. (abstract) [note: provided an undated phylogeny of Climacterida, including Climacteris rufa [sic] and Cormobates placens] 

Oliveros CH, Field DJ, Ksepka DT, Barker KF, Aleixo A, Andersen MJ, Alström P, Benz BW, Braun EL, Braun MJ, Bravo GA, Brumfield RT, Chesser RT,  Claramunt S, Cracraft J, Cuervo AM, Derryberry EP, Glenn TC, Harvey MG, Hosner PA, Joseph L, Kimball RT, Mack AL, Miskelly CM, Peterson AT, Robbins MB, Sheldon FH, Silveira LF, Smith BT, White ND, Moyle RG, and Faircloth BC (2019), Earth history and the passerine superradiation, Proc. Natl. Acad. Sci. 116, 7915-25. (pdf) [note: provided a passerine timetree, including Climacteris melanurus and Cormobates leucophaea]