Genus Fasciola is a type of parasitic flatworm that affects numerous animal species such as sheep, cattle, horses, and goats. There are various synonyms that are used for this particular genus, depending on the species it infects. For example, Fasciola hepatica is commonly known as the sheep liver fluke, while Fasciola gigantica is referred to as the greater liver fluke. The genus Fasciola is also closely related to the genus Dicrocoelium, which is another type of liver fluke. Some other commonly used synonyms for Genus Fasciola include trematodes, flukes, and Fasciolidae. It is essential to understand these different synonyms when studying parasitology and the effects of these organisms on different host species.