id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
work_oesqpiwmlbbnjk6cze6663iyom	Ioannis Votsis	Book Reviews	2007	5	.pdf	application/pdf	1688	97	59	Essay-review of Valentine's On the Origin of Phyla phylogeny, On the Origin of Phyla, a work that might be best described as a product of sections: 'Evidence of the Origins of Metazoan Phyla' (chapters 1–5, pp. clear distinctions, one between taxa and ranks, and the other between classification and Ranks are the 'levels' assigned to taxa within a given systematic hierarchy: kingdom, phylum, class, order, family, genus, species. phylogenetic systematics (cladistics) in the 1960s and 1970s more and more systematists have come regard rank as dispensable, and they tend to speak now only of taxa For those who hold this position, the very title of Valentine's book, On the Origin of Phyla, is problematic, since Origin of the Taxa Ranked as Superorders'. remaining members of that school will probably find Valentine's views on classification clearly between classification and phylogeny, however: many came to regard classification per se, like rank per se, as a dispensable idea (de Queiroz and Gauthier 1992).	./cache/work_oesqpiwmlbbnjk6cze6663iyom.pdf	./txt/work_oesqpiwmlbbnjk6cze6663iyom.txt