"genesis and evolution of a phylum," 1869, from German Phylogenie, coined 1866 by German biologist Ernst Heinrich Haeckel (1834-1919) from Greek phylon "race" (see phylo-) + -geneia "origin," from -genes "born" (see genus). Related: Phylogenic.
phylogeny phy·log·e·ny (fī-lŏj'ə-nē)n.
The evolutionary development and history of a species or higher taxonomic grouping of organisms. Also called phylogenesis.
The evolutionary development of an organ or other part of an organism.