†Zarhachis Cope 1868
Mammalia - Cetacea - Platanistidae
Alternative spelling: Zarachis
Full reference: E. D. Cope. 1868. Second contribution to the history of the Vertebrata of the Miocene period of the United States. Proceedings of the Academy of Natural Sciences of Philadelphia 1868:184-194
Parent taxon: Platanistidae according to J. H. Geisler et al. 2011
Sister taxa: Araeodelphis, Argyrocetinae, Pachyacanthus, Platanista, Platanistinae, Pomatodelphininae, Pomatodelphis
Subtaxa: Zarhachis crassangulum, Zarhachis flagellator, Zarhachis tysonii, Zarhachis velox
Type: Zarhachis flagellator