Ontophylogenesis merges the concepts of

Ontogenesis Ontogeny (also ontogenesis) is the origination and development of an organism (both physical and psychological, e.g., moral development), usually from the time of fertilization of the egg to adult. The term can also be used to refer to the stu ...

and

Phylogenesis 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. These terms may ...

to yield Darwinian theory at the cellular level. Described by its originator

Jean-Jacques Kupiec Jean-Jacques is a French name, equivalent to "John James" in English. Since the second half of 18th century, Jean Jacques Rousseau was widely known as Jean Jacques. Notable people bearing this name include: Given name * Jean-Jacques Annaud (born 19 ...

as "the extension of natural selection, taking place inside the organism among the cell populations of which it is constituted. It ends with evolution and ontogenesis merging into a single phenomenon." Hierarchical analysis of ontogenetic time describing

heterochrony In evolutionary developmental biology, heterochrony is any genetically controlled difference in the timing, rate, or duration of a Developmental biology, developmental process in an organism compared to its ancestors or other organisms. This lea ...

and taxonomy of developmental stages is viewed as a segmentation of ontogenetic time depicting phylogenesis. This permits the graphical depiction of time based evolutions of organs for a set of species, and is consistent with accepted theories of

evolutionary biology Evolutionary biology is the subfield of biology that studies the evolutionary processes such as natural selection, common descent, and speciation that produced the diversity of life on Earth. In the 1930s, the discipline of evolutionary biolo ...

.Moczek, A. P. Towards a theory of development through a theory of developmental evolution. In Towards a Theory of Development (pp 218–226) (eds Minelli, A. & Pradeu, T.) (Oxford University Press, Oxford, 2014). https://doi.org/10.1093/acprof:oso/9780199671427.003.0014.

References

Phylogenetics Charles Darwin {{Zoology-stub