Ichthyosaurs were a group of secondarily marine reptiles, superficially resembling living dolphins. First appearing in the Early Triassic, the group rapidly diversified, evolving a suite of morphologies thought to be associated with an increasingly off-shore habitat. Research interest in ichthyosaurs has increased dramatically in recent years, with a plethora of newly described genera from all over the world. However, the evolutionary relationships within the group remain controversial. I am currently involved in ongoing collaborative projects describing new ichthyosaur taxa and working on refining our understanding of their evolutionary relationships. I am also investigating the factors controlling intraspecific variation in the group.