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	titanosaurs, and Campos et al [93] for Trigonosaurus. Basal
	sauropodomorphs are a grade, not a clade, but they are listed
	together here for convenience since they all lack caudal
	pneumaticity.

The published illustration
http://svpow.files.wordpress.com/2013/11/wedel-taylor-2013b-figure-2-phylogenetic-distribution-of-caudal-pneumaticity.jpg
is a combination (edited together by hand) of two computer-generated
SVG files:

1. A phylogenetic tree built using Treeview. For reference, we include
that tree here both as the hand-edited Nexus file that was the source
code (pbj-phylogeny.tre) and as the SVG file generated by Treeview
(pbj-phylogeny.svg).

2. The pneumaticity diagram built using VertFigure.

Working from the generated vertebral-column picture, we moved the
captions to the right of the vertebrae by hand. This editing was done
using Inkscape, as was the merge with the phylogenetic tree.

In this VCD file, we used two very simple glyphs: a solid light-blue
rectangle that fills the box for pneumatic vertebrae; and a pale grey