phylogenesis
Sign in to savethumb|right|250px|Phylogenetic divergence (phyletic gradualism) (above) shows relatively slow changes during geologic epoch: the broken balance (below) illustrates morphological stability and (rarely) the relatively rapid evolutionary change.
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- Phylogeny
- Cladistics
- Taxonomy
- Ontophylogenesis
- Similarities and differences
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thumb|right|250px|Phylogenetic divergence (phyletic gradualism) (above) shows relatively slow changes during geologic epoch: the broken balance (below) illustrates morphological stability and (rarely) the relatively rapid evolutionary change.
Phylogenesis (from Greek φῦλον phylon "tribe" + γένεσις genesis "origin") is the biological process by which a taxon (of any rank) appears. The science that studies these processes is called phylogenetics.