- 1866, and the
Darwinian approach to
classification became known as the "
phyletic" approach. It can be
traced back to Aristotle, who
wrote in his Posterior...
-
Phyletic gradualism is a
model of
evolution which theorizes that most
speciation is slow,
uniform and gradual. When
evolution occurs in this mode, it is...
-
Phyletic dwarfism is the
decrease in
average size of
animals of a species.
There are a few cir****stances that
often lead to
species doing this. Lack of...
-
Anagenesis is the
gradual evolution of a
species that
continues to
exist as an
interbreeding po****tion. This
contrasts with cladogenesis,
which occurs...
- 2013,
retrieved 19
October 2013 Cain, A. J.; Harrison, G. A. (1960), "
Phyletic weighting",
Proceedings of the
Zoological Society of London, 35: 1–31,...
-
transforming into another.
Punctuated equilibrium is
commonly contrasted with
phyletic gradualism, the idea that
evolution generally occurs uniformly by the steady...
-
identification (diagnostic keys) or more
closely related to the
natural or
phyletic order of the taxa in
synoptic keys. By the 18th century, new
plants for...
-
swift periods of
branching speciation. The
theory was
contrasted against phyletic gradualism, the po****r idea that
evolutionary change is
marked by a pattern...
- classifications,
based on
evolutionary relationships. This was the
concept of
phyletic systems, from 1883 onwards. This
approach was
typified by
those of Eichler...
-
Phylogenetic divergence (
Phyletic gradualism) (above)
shows relatively slow
changes during geologic epoch: the
broken balance (below)
illustrates morphological...
