Note: the websites previously hosed at http://www.cs.utexas.edu/~phylo now redirect here.
The utexas website is not available anymore, but we have made an effort to continue providing all the datasets previously available on utexas. We now host these datasets in a different place. The following link includes (among other things) most of the simulated and biological datasets that Tandy Warnow's lab had previously provided through http://www.cs.utexas.edu/~phylo.