Ghost locus appears

The ctenophore genome and the evolutionary origins of neural systems

(2014) Leonid L. Moroz et al.   NATURE

Calcisponges have a ParaHox gene and dynamic expression of dispersed NK homeobox genes

(2014) Sofia A. V. Fortunato et al.   NATURE

Ghost Loci Imply Hox and ParaHox Existence in the Last Common Ancestor of Animals

(2012) Olivia Mendivil Ramos et al.   CURRENT BIOLOGY

Deep homology: A view from systematics

(2010) Robert W. Scotland   BIOESSAYS

Molecular Phylogeny Restores the Supra-Generic Subdivision of Homoscleromorph Sponges (Porifera, Homoscleromorpha)

(2010) Eve Gazave et al.   PLoS One

The homeodomain complement of the ctenophore Mnemiopsis leidyi suggests that Ctenophora and Porifera diverged prior to the ParaHoxozoa

(2010) Joseph F Ryan et al.   EvoDevo

Compagen, a comparative genomics platform for early branching metazoan animals, reveals early origins of genes regulating stem-cell differentiation

(2008) Georg Hemmrich et al.   BIOESSAYS

The Ediacaran emergence of bilaterians: congruence between the genetic and the geological fossil records

(2008) K. J Peterson et al.   PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES

Phylogeny and Evolution of Glass Sponges (Porifera, Hexactinellida)

(2008) Martin Dohrmann et al.   SYSTEMATIC BIOLOGY