# Prototheria

> subclass of mammals

**Wikidata**: [Q715778](https://www.wikidata.org/wiki/Q715778)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Prototheria)  
**Source**: https://4ort.xyz/entity/prototheria


## References

1. Integrated Taxonomic Information System. 2006
2. Class Mammalia Linnaeus, 1758
3. Classification of Mammals Above the Species Level
4. The principles of classification and a classification of mammals
5. Taxonomy database of the U.S. National Center for Biotechnology Information
6. Fossilworks
7. GF WordNet
8. Open Tree of Life reference taxonomy version 3.6