The Evolution of Cephalaspidea gastropods

Cephalaspidea is an Order of Gastropoda with an estimated 700 marine living species worldwide, largely bearing an external shell, but the validity and definition of most families and genera is still not fully established and their relationships in many cases are poorly known. This results from inadequate original descriptions which are in some cases based on shells alone or few anatomical characters. In this project we use genomic data and phylogenetics to achieve a complete genus-level phylogeny of the Cephalaspidea, define the monophyly of genera and families and their relationships.