The type and only species, Westollia crassa, was first described as Lepidopterus crassus, but because this genus name was preoccupied, a new genus name was given, Westollia, honoring Thomas Stanley Westoll.[3]
^White, Errol Ivor; Moy-Thomas, James Alan (1941). "XXV. — Notes on the nomenclature of fossil fishes, 3. Homonyms M–Z". Journal of Natural History. Series 11. 7: 395–400. doi:10.1080/03745481.1941.9727941..