We constructed this unique web site based on the following
classification:
Higher-level metazoan relationships: recent progress
and remaining questions
Gregory D. Edgecombe & Gonzalo Giribet & Casey W. Dunn & Andreas Hejnol &
Reinhardt M. Kristensen & Ricardo C. Neves & Greg W. Rouse & Katrine Worsaae &
Martin V. Sorensen
Org Divers Evol (2011) 11:151-172