“…A number of phylogenetic studies have been published at several levels (e.g., Yeates 1989Yeates , 1992Yeates , 1994Evenhuis 1990;Zaitzev 1992;Greathead 1995Greathead , 1996Greathead , 1998Greathead , 1999Lamas & Couri 1999Lambkin et al 2003), however, none of them treated the studied group on a temporal scale. One of the key concerns for systematists and biologists involved in the Tree of Life project is the calibration of phylogenies against time, with the source data coming from molecular and paleontological studies (Benton & Ayala 2003).…”