We recently undertook updating our lineage trees.  The last time the trees were updated was in the mid 1990's and only a hard copy of this was found, so we had to completely recreate the trees.  These are accurate to our knowledge, but if there are errors (spelling, additional little brothers, etc.), please let us know by emailing corrections to the webmaster. Additionally, a Microsoft Word version of the trees is available below.  Enjoy.

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  ZBT Phi Ep Lineage Tree.doc

Lineage 1