@article{e89e1e4ec4a5414995907090a59609d9,
title = "Time, Species, and the Generation of Trait Variance in Clades",
author = "Ricklefs, {Robert E.}",
note = "{\textcopyright} 2006 Society of Systematic BiologistsNo consensus has developed concerning the mechanism of phenotypic diversification among species within clades. Eldredge and Gould (1972) and Gould and Eldredge (1977) proposed an alternative to the then prevailing view among evolutionary biologists that evolution occurred by frequent small steps along branches of a phylogeny (anagenesis).",
year = "2006",
month = feb,
day = "1",
doi = "10.1080/10635150500431205",
language = "American English",
volume = "55",
journal = "Systematic Biology",
}