The Cuculiformes are represented by a single family, the Cuculidae (cuckoos). The phylogeny is not well founded, and the divergence times are still obscure: 

Genus-level timetree of extant Cuculidae, with the distribution of each taxon being indicated by the colour-code used throughout this website (see Distribution code). Subfamily interrelations are based on Sorenson & Payne (2005), Prum et al. (2015), and Wang et al. (2016).


Johnson KP, Goodman SM, and Lanyon SM (2000), A phylogenetic study of the Malagasy Couas with insights into cuckoo relationships, MolPhylogenet. Evol. 14, 436-444.  (pdf)


Prum RO, Berv JS, Dornburg A, Field DJ, Townsend JP, Lemmon EM, and Lemmon AR (2015), A comprehensive phylogeny of birds (Aves) using targeted next-generation DNA sequencing, Nature 526, 569-57. (abstract)


Qu J, Cong J, Guo C, Hou J, and Shi B (2017), Complete mitochondrial genome of the Greater Coucal, Centropus sinensis (Aves: Cuculiformes), Mitochondrial DNA Part A 28, 311-312. (abstract)


Sorenson MD, and Payne RB (2005), Molecular systematics: cuckoo phylogeny inferred from mitochondrial DNA sequences in "The Cuckoos", pp. 68-94 (R.B. Payne, ed.). Oxford University Press, Oxford. (abstract)


Tian Y, Xu J, Dou L, Zheng A, Qiao L, Xie j, and Zhang X (2021), The complete mitochondrial genome of the Indian Cuckoo Cuculus micropterus (Aves: Cuculiformes), Mitochondrial DNA Part B 6 (9), 2556-2558. (pdf)


Wang N, Liang B, Huo J, and Liang W (2016), The complete mitochondrial genome and the phylogenetic position of the Lesser Cuckoo, Cuculus poliocephalus (Aves: Cuculiformes), Mitochondrial DNA Part A 27:6, 4409-4410. (abstract)