Chen et al (2021) recognizes eight families, including five new extant families (Geoscelionidae, Janzenellidae, Neuroscelionidae, Nixoniidae, and Sparasionidae) and one extinct family †Proterosceliopsidae, known from fossils found in Cretaceous amber.
Chen et al (2021) recognizes eight mite families, including five newly discovered living families (Geoscelionidae, Janzenellidae, Neuroscelionidae, Nixoniidae, and Sparasionidae), as well as one extinct family †Proterosceliopsidae, which is identified from Cretaceous amber.