Echinoderm Phylogeny Including Xyloplax, a Progenetic Asteroid.Published in:Systematic Biology, 2011, v. 60, n. 4, p. 420, doi. 10.1093/sysbio/syr044By:JANIES, DANIEL A.;VOIGHT, JANET R.;DALY, MARYMEGANPublication type:Article