This order is represented by the Ciconiidae (storks). Molecular data are limited to mitochondrial CYB and COI genes (Corrêa de Sousa et al., 2023).

Species-level phylogeny of extant Ciconiiformes according to the results of Corrêa de Sousa et al. (2023), with the distribution of each family being indicated by the colour-code used throughout this website (Distribution code). 

References

Corrêa de Sousa RP, Campos PSB, da Silva dos Santos M, O’Brien PC, Ferguson-Smith MA, Corrêa de Oliveira EH (2023), Cytotaxonomy and molecular analyses of Mycteria americana (Ciconiidae: Ciconiiformes): insights on stork phylogeny, Genes 14, e:816. (free pdf)

Liang WL, Zhou J, and Ren ZM (2019), Complete mitochondrial genome of Ciconia nigra (Ciconiiformes: Ciconiidae), a threatened stork in China, Mitochondrial DNA Part B 2, 510-511. (pdf)

Slikas B (1997), Phylogeny of the avian family Ciconiidae (storks) based on cytochrome b sequences and DNA-DNA hybridization distances, Mol. Phylogenet. Evol. 8, 275-300.  (abstract)

Photos