Home › Words › P › phylospeciesphylospeciesphylospecies means the smallest unit appropriate for phylogenetic analysis (the unit product of natural selection and descent).Among words judged in Lexicurio's Arena, phylospecies ranks #16,734 of 42,752 for Qualifying.EtymologyFrom phylo- + species.nounThe smallest unit appropriate for phylogenetic analysis (the unit product of natural selection and descent).A geographically constrained group with one or more unique apomorphies.Definitions & examples from Wiktionary (CC BY-SA 3.0).