- In phylogenetics, a
plesiomorphy ("near form") and
symplesiomorphy are
synonyms for an
ancestral character shared by all
members of a clade,
which does...
-
through a
measure of
overall similarity,
making no
distinction between plesiomorphies (shared
ancestral traits) and
apomorphies (derived traits). From the...
-
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...
- however.
Researchers must
decide which character states are "ancestral" (
plesiomorphies) and
which are
derived (synapomorphies),
because only synapomorphic...
- in
different groups (homoplasies) or
those left over from
ancestors (
plesiomorphies) – and
derived characters,
which have been p****ed down from innovations...
- (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...
-
recognized to have been
previously grouped with
opossums on the
basis of
plesiomorphies and are now
considered to
represent older branches of
Metatheria only...
-
Phenetic analyses are "unrooted", that is, they do not
distinguish between plesiomorphies,
traits that are
inherited from an ancestor, and apomorphies, traits...
- 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...
