Mammals from the Age of Dinosaurs. Z. Kielan-Jaworowska, R. L. Cifelli, and Z. Luo. 2004. Columbia University Press, New York, 630 p. $195.00. ISBN 0231119186.

When you left your house this morning, chances are you saw a mammal (at least one!). As a class in Linnaean hierarchy, we mammals are highly successful and diverse; in fact, we are the most conspicuous vertebrates to inhabit today's Earth, with some 4,600 species (Macdonald, 2002). Today's mammals are descended from three major evolutionary lineages—eutherians or placentals, metatherians or marsupials, and the egg-laying monotremes—and are at the tips of the branches of...

First Page Preview

First page PDF preview
You do not currently have access to this article.