An acarid belonging to the still-living genusHydrozetesBerlese, 1902 was found in the Lower Sinemurian (Jurassic) in a core drilling from south of Höganäs, Skåne. Sedimentary rock firmly attached to the specimen proves that it is not Recent. The microfauna of Foraminifera and ostracodes indicates a marine environment. The find is the oldest oribatid hitherto reported in the literature.