The first Mosasaur Meeting took place in Maastricht (May 2004) and has since run triennially (2007 – Hays, Kansas; 2010 – Paris, France; 2013 – Dallas, Texas; 2016 – Uppsala, Sweden; 2019 – Drumheller, Canada). These symposia have been unique in bringing together scholars, MSc and PhD students and non-professional palaeontologists, within an informal forum dedicated to these amazing extinct reptiles.