E Vicipaedia
Prototheria (nomen a Theodoro Gill anno 1872 inventum) est mammalium subclassis. Sola huius subclassis animalia viva sunt Monotremata.
[recensere] Systema taxinomicum Animalis
- Corbet, G. B., et J. E. Hill. 1991. A World List of Mammalian Species. Editio tertia. London et Oxford: Natural History Museum Publications & Oxford University Press.
- DeBlase, A. F. 1982. "Mammalia." In Synopsis and Classification of Living Organisms, ed. S. P. Parker, 2:1015–1061. Novi Eboraci: McGraw-Hill.
- Groves, C. P. 1993. "Order Monotremata." In Mammal Species of the World, ed. secunda, ed. D. E. Wilson & D. M. Reeder, 13. Washington et London: Smithsonian Institution Press.
- Groves, C. P. 2005. "Order Monotremata." In Mammal Species of the World, ed tertia, ed. D. E. Wilson & D. M. Reeder, 1–2. Baltimorae: The Johns Hopkins University Press.
- McKenna, M. C., et S. K. Bell. 1997. Classification of Mammals Above the Species Level. Novi Eboraci: Columbia University Press.
- Nowak, R. M. 1991. Walker's Mammals of the World. Vol. 1. Editio quinta. The Johns Hopkins University Press, Baltimore and London.