Definitions for "Phyletic gradualism"
The process of gradual evolutionary change over time.
Both micro- and macroevolutionary change is gradual; see also Punctuated Equilibrium
Phyletic gradualism is a theory that addresses the rate of evolutionary changes over time. In this theory, evolutionary changes occur gradually over time, at a relatively slow, even rate. Phyletic gradualism was defined by Eldredge and Gould to contrast with their theory of phyletic equilibria.