No longer Demospongiae: Homoscleromorpha formal nomination as a fourth class of Porifera

  title={No longer Demospongiae: Homoscleromorpha formal nomination as a fourth class of Porifera},
  author={Eve Gazave and Pascal Lap{\'e}bie and Alexander V. Ereskovsky and Jean Vacelet and Emmanuelle Renard and Paco C{\'a}rdenas and Carole Borchiellini},
Over the past few years, there has been growing interest among the sponge community in the phylogenetic position of the Homoscleromorpha (i.e. within or outside the class Demospongiae). Recent molecular analyses clearly show that the Homoscleromorpha forms a distinct clade separated from the Demospongiae and is composed of two families, Oscarellidae and Plakinidae. Within the currently more widely accepted hypothesis of a monophyletic Porifera, we formally propose here to raise Homoscleromorpha… 

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