What is the meaning of Prototheria?

noun

WordNet 3.0 © 2006 by Princeton University
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APAWordNet. (2010). Prototheria. Retrieved October 2, 2026, from http://smartdefine.org/prototheria/definitions/1196866
ChicagoWordNet. 2010. "Prototheria" http://smartdefine.org/prototheria/definitions/1196866 (accessed October 2, 2026).
HarvardWordNet 2010, Prototheria, Smart Define, viewed 2 October, 2026, <http://smartdefine.org/prototheria/definitions/1196866>.
MLAWordNet. "Prototheria" 23 October 2010. Web. 2 October 2026. <http://smartdefine.org/prototheria/definitions/1196866>
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