Molecules, morphology, and ecology indicate a recent, amphibious ancestry for echidnas

Correlates of substitution rate variation in mammalian protein-coding sequences

(2009) John J Welch et al.   BMC EVOLUTIONARY BIOLOGY

An analysis of the factors that influence the level and scaling of mammalian BMR

(2008) Brian Keith McNab   COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY A-MOLECULAR & INTEGRATIVE PHYSIOLOGY

Branch-length estimation bias misleads molecular dating for a vertebrate mitochondrial phylogeny

(2008) Matthew J. Phillips   GENE

A Dated Phylogeny of Marsupials Using a Molecular Supermatrix and Multiple Fossil Constraints

(2008) Robin M. D. Beck   JOURNAL OF MAMMALOGY

Genome analysis of the platypus reveals unique signatures of evolution

(2008) Wesley C. Warren et al.   NATURE

The oldest platypus and its bearing on divergence timing of the platypus and echidna clades

(2008) T. Rowe et al.   PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA

Stable isotope evidence for an amphibious phase in early proboscidean evolution

(2008) A. G. S. C. Liu et al.   PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA