Speciation without branching of the evolutionary line of descent.

Anagenesis, is a buzz-word based on ana ( re-again, like Anastasia- rebirth)- and Genesis, the origin- the first book in the Bible. I have never heard this usage. I am familiar with Anabaptists, the forerunner of the present Baptist denomination which in more modern language would be re-baptists, who Baptized adults. I have read of Parthenogenesis- genesis of life 9 Outside the walls) for example the so-called Test tube baby, but that is something else. not familiar with anagenesis, Anastasia, Da!

Rate of change of morphological traits, typically measured by quantitative measures - Changes in disparity over time.

Evolution is the change in populations of organisms over time while speciation is the direct result of natural selection working to select individuals with traits different enough, but beneficial enough, y drive their alleles into greater frequency in popilations so that new species have a chance of arising; either by anagenesis or phylogenesis.

Punctuated equilibrium is commonly contrasted against phyletic gradualism, the belief that evolution generally occurs uniformly and by the steady and gradual transformation of whole lineages (called anagenesis). In this view, evolution is seen as generally smooth and continuous.