| cytotaxonomy of eurypyga helias (gruiformes, eurypygidae): first karyotypic description and phylogenetic proximity with rynochetidae. | the sunbittern (eurypyga helias) is a south american gruiformes, the only member of family eurypigidae. in most phylogenetic proposals, it is placed in a more distant position than other families of the so-called "core gruiformes". different studies based on molecular, morphological and biogeographical data suggest that the eurypigidae is closely related to the kagu (rhynochetos jubatus), the only species in rynochetidae, another family not included in the core gruiformes. here, the karyotype of ... | 2015 | 26624624 |