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Geological Magazine

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AX, P. 2000. Multicellular Animals, Volume II. The Phylogenetic System of the Metazoa.

xxiv + 396 pp. Berlin, Heidelberg, New York: Springer-Verlag. Price Euros 229.00 (+ VAT at local rate), SFr 387.50, £176.00, US $241.00 (hard covers). ISBN 3 540 67496 3.

AX, P. 2003. Multicellular Animals, Volume III. Order in Nature – System Made by Man. xii + 317 pp. Berlin, Heidelberg, New York: Springer-Verlag. Price Euros 179.95 (+ VAT at local rate), SFr 304.50, £138.50, US $199.00 (hard covers). ISBN 3 540 00146 8.

The first 20% of the full text of this article appears below.

The study of animal evolution, fuelled by dramatic contributions from molecular biology and striking discoveries in the fossil record, is an area of exceptional scientific vigour. Peter Ax, one of the senior figures in animal phylogeny, here completes his trilogy, some seven years after the appearance of the first volume (which was reviewed by me in Geological Magazine 134, 276 (1997)). And to the first approximation not very much has changed. Ax is a committed cladist and his text bristles with assertions that such and such a way is correct, because of the near-infallible uncertainties of the methodology and the careful (even laborious) assembly of autapomorphies. Evolutionary convergence . . . [Full Text of this Article]