Additional File 1.

This file (MS Word) includes: (1) additional details of the methodology, (2) accession numbers of sequences used in the phylogenetic and molecular clock analyses, (3) the aligned sequence data used in the phylogenetic analyses, and (4) additional information regarding the fossil calibration points.

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Pisani et al. BMC Biology 2004 2:1   doi:10.1186/1741-7007-2-1