@inbook {6373,
	title = {Speciation and sorting as the source of evolutionary trends, or {\textquoteright}things are seldom what they seem{\textquoteright}},
	booktitle = {Evolutionary trends},
	year = {1990},
	pages = {3-27},
	publisher = {Belhaven Press},
	organization = {Belhaven Press},
	address = {London},
	keywords = {evolution, extinction, macroevolution, speciation, trends},
	author = {Gould, Stephen Jay},
	editor = {McNamara, Kenneth J.}
}
