BioStor
 | Systematics of the chiropteran family Mormoopidae James Dale Smith (1972) Miscellaneous Publ. Mus. nat. Hist. Univ Kans 56: 1-132 |
 | Fossil Mammals and Early Eocene North Atlantic Land Continuity Malcolm C Mckenna (1975) Annals of the Missouri Botanical Garden 62: 335-353 |