Hi Kevin.
I was thinking the same thing & this is already in phytools on GitHub:
http://blog.phytools.org/2017/02/function-to-add-error-bars-to-contmap.html.
Thanks for the suggestion.
All the best, Liam
Liam J. Revell, Associate Professor of Biology
University of Massachusetts Boston
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Geometric Morphometrics Using R (GMMR01)
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