does_definitively_have_no_common_ancestor

does_definitively_have_no_common_ancestor(first: Union[HereditaryStratigraphicColumn, HereditaryStratigraphicSpecimen], second: Union[HereditaryStratigraphicColumn, HereditaryStratigraphicSpecimen]) → bool

Does the hereditary stratigraphic record definitively prove that first and second could not possibly share a common ancestor?

If the founding strata of first and second (i.e., generation 0) have unequal differentia, then first and second cannot possibly share common ancestry.

Note equal differentia at generation 0 does not necessarily imply common ancestry; colliding differentia values could have been independently generated by chance.

Note also that stratum rention policies are strictly required to permanently retain the most ancient stratum.

See Also

does_have_any_common_ancestor :

Can we conclude with confidence_level confidence that first and second share a common ancestor?