What is "marseillevirus"

Marseillevirus is a genus of viruses, in the family Marseilleviridae. There are currently only two species in this genus, including the type species Marseillevirus marseillevirus. It is the prototype of a family of nucleocytoplasmic large DNA viruses (NCLDV) of eukaryotes (commonly known as Giant Viruses). It was isolated from amoeba.