The evolution of bilaterian body-plan: perspectives from the developmental genetics of the Acoela (Aeoelomorpha). 

Chiodin, Marta (Date of defense: 2013-02-15)

The mesoderm is the third germ layer, which is formed at gastrulation between the endoderm and the ectoderm in triploblastsc animals (Bilateria). The mesoderm differentiates into muscles, connective tissues and coelomic ...