What is the meaning of subclass prototheria?

noun

WordNet 3.0 © 2006 by Princeton University
10
 
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APAWordNet. (2010). subclass Prototheria. Retrieved October 2, 2026, from http://smartdefine.org/subclass_prototheria/definitions/1313664
ChicagoWordNet. 2010. "subclass Prototheria" http://smartdefine.org/subclass_prototheria/definitions/1313664 (accessed October 2, 2026).
HarvardWordNet 2010, subclass Prototheria, Smart Define, viewed 2 October, 2026, <http://smartdefine.org/subclass_prototheria/definitions/1313664>.
MLAWordNet. "subclass Prototheria" 23 October 2010. Web. 2 October 2026. <http://smartdefine.org/subclass_prototheria/definitions/1313664>