- In phylogenetics, a
plesiomorphy ("near form") and
symplesiomorphy are
synonyms for an
ancestral character shared by all
members of a clade,
which does...
- a
clade from
other organisms.
Shared ancestral character states,
symplesiomorphies,
represent either synapomorphies of a more
inclusive group, or complementary...
-
Paraphyletic groups are
identified by a
combination of
synapomorphies and
symplesiomorphies. If many
subgroups are
missing from the
named group, it is said to...
-
contend that
overall similarity (synapomorphies and
complementary symplesiomorphies) is the
determining criterion,
while evolutionary taxonomists say...
- Kap****, P. M. (2010). "Chapter 19:
Human universals and
primate symplesiomorphies:
Establishing the
lemur baseline". In Kap****, P. M.; Silk, J. B...
-
within each
other share a plesiomorphy, it is a
symplesiomorphy (from syn-, "together").
Symplesiomorphies do not mean that the taxa that
exhibit that character...
-
apomorphies and synapomorphies.
Symplesiomorphy – an
ancestral trait shared by two or more taxa.
Plesiomorphy – a
symplesiomorphy discussed in
reference to...
-
innovations (or synapomorphies), the
common retention of
archaisms (or
symplesiomorphy) is not
considered conclusive evidence of a
period of
common isolated...
-
shared between the
outgroup and some
members of the in-group are
symplesiomorphies;
states that are
present only in a
subset of the in-group are synapomorphies...
- for egg yolk formation) is
shared with birds; the
presence of this
symplesiomorphy suggests that the
common ancestor of monotremes, marsupials, and placentals...
