I've attached a cool merger tree I just made up while doing some testing of the Merger Tree code. This is the tree for the most massive halo at z=0 for a recent simulation. Time goes forward from top to bottom, and you can see the redshift in the small black boxes on the right of each row. The colors of the boxes are from green to red, smallest to largest at each snapshot (so color doesn't always mean the same mass). The arrows show the parent-child relationship, and the percentages next to the arrow is how much mass of the parent went to the child. The halo info is inside each box, with the particle mass (Msol) as calculated by the halo finder and the CoM position. If you look carefully, you can see cases where a halo took more than one pass to fully integrate into the most massive halo.
_______________________________________________________ firstname.lastname@example.org o__ Stephen Skory http://physics.ucsd.edu/%7Esskory/ _.>/ _Graduate Student ________________________________(_)_\(_)_______________