Given that synapomorphies only occur after the process of evolution has started, and evolution is a consequence of sin, it's appropriate to change the spelling of synapomorphy to sinapomorphy.
May 7th
Primitive or Advanced?
Cladistic phylogenetic analysis works by grouping species based on shared derived characteristics (synapomorphies). All of the members of a homologous group have a common ancestor.
Archaeopteris (Dawson): A case study in the applicability of phylogenetic analysis to fossil taxa
Cladistic phylogenetic analysis is circular reasoning based on personal bias.