[1] Several suggestions were made early on about its relationships, including that of Wilhelm Peters in 1865, who placed it in the family Vespertilionidae and considered it to be related to the Australian Nyctophilus.

[4] In 1970, Karl F. Koopman and J. Knox Jones recognized a tribe Antrozoini (comprising only Antrozous and Bauerus), which they still placed within Nyctophilinae.

[5] The next year, Ronald Pine and colleagues further questioned this relationship on the basis of baculum (penis bone) characters, although they cautioned that more penes of Bauerus needed to be studied.

[1] However all DNA studies place antrozoines in Vespertilioninae, and this led Steven Hoofer and Ronald Van Den Bussche (2003) as well as Zachary Roehrs and colleagues (2010) to classify them as a tribe, Antrozoini, within that subfamily.

[5] The pallid bat occurs in northern Mexico, the western United States (east to Kansas and Texas), and marginally southwestern Canada (British Columbia).

White named the genus Anzanycteris on the basis of Pliocene fossils from California (originally identified as Pleistocene) and included it in Nyctophilinae.