Definition of Plesiomorphies. Meaning of Plesiomorphies. Synonyms of Plesiomorphies

- In phylogenetics, a plesiomorphy ("near form") and symplesiomorphy are synonyms for an ancestral character shared by all members of a clade, which does...
- character or character state that has evolved from its ancestral form (or plesiomorphy). A synapomorphy is an apomorphy shared by two or more taxa and is therefore...
- through a measure of overall similarity, making no distinction between plesiomorphies (shared ancestral traits) and apomorphies (derived traits). From the...
- however. Researchers must decide which character states are "ancestral" (plesiomorphies) and which are derived (synapomorphies), because only synapomorphic...
- (meaning "progenitor goose") from some 12 million years ago had even more plesiomorphies in common with swans. In addition, some goose-like birds are known from...
- lineage does not imply that it must retain all the "primitive" features (plesiomorphies) of its ancestral lineage. Although it is common to say that living...
- but it has since been recognized that this was solely on the basis of plesiomorphies; they are now considered to belong to older branches of Metatheria that...
- in different groups (homoplasies) or those left over from ancestors (plesiomorphies) – and derived characters, which have been p****ed down from innovations...
- include vascular plant apomorphies (e.g., vascular tissue) and land plant plesiomorphies (e.g., spore dispersal and the absence of seeds). Of the pteridophytes...
- used to identify shared or distinct character states among groups: A plesiomorphy ("close form") or ancestral state is a character state that a taxon has...