The phylogeny of the major groups of tetrapods (amphibians, reptiles, birds, and mammals)
has until recently been poorly understood. Cladistic analyses of morphological data are …

Crocodilians and birds are the modern representatives of Phylum Archosauria. Although
there have been recent advances in our understanding of the phylogeny and ecology of …

Take your knowledge of fishes to the next level Fishes of the World, Fifth Edition is the only
modern, phylogenetically based classification of the world's fishes. The updated text offers …

Reptiles with two temporal openings in the skull are generally divided into two groups–the
Lepidosauria (lizards, snakes, Sphenodon,'eosuchians') and the Archosauria (crocodiles …

Understanding phenotypic diversity requires not only identification of selective factors that
favor origins of derived states, but also factors that favor retention of primitive states. Anurans …

A new phylogenetic analysis of early amniotes based on 124 characters and 13 taxa
(including three outgroups) indicates that synapsids are the sister-group of all other known …

The evolution of body size in tetrapods is assessed using a database that includes 107 early
stegocephalian species ranging in time from the Frasnian (Upper Devonian) to the Tatarian …

One of the leading textbooks in its field, Bringing Fossils to Life applies paleobiological
principles to the fossil record while detailing the evolutionary history of major plant and …

A study on the most exhaustive taxonomic sample of amniotes (75 extant and nine extinct
taxa) of any quantitative work on this topic published so far demonstrates a strong …

At least two outgroups are used to identify the level of synapomorphy of over 350 characters
distributed among the higher systematic categories of Diapsida. The hypotheses so …