# monotreme

> order of mammals

**Wikidata**: [Q21790](https://www.wikidata.org/wiki/Q21790)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Monotreme)  
**Source**: https://4ort.xyz/entity/monotreme


## References

1. Integrated Taxonomic Information System. 2006
2. Class Mammalia Linnaeus, 1758
3. Mammal Species of the World (Third edition)
4. [Nuovo soggettario](https://thes.bncf.firenze.sbn.it/termine.php?id=2885)
5. Nuovo soggettario
6. [Source](https://news.softpedia.com/news/Two-Headed-Penises-Four-Headed-Penises-and-Double-Vaginas-43001.shtml)
7. Freebase Data Dumps. 2013
8. Taxonomy database of the U.S. National Center for Biotechnology Information
9. Encyclopedia of Life
10. Fossilworks
11. Global Biodiversity Information Facility
12. YSO-Wikidata mapping project
13. UMLS 2023
14. Barcode of Life Data Systems
15. Interim Register of Marine and Nonmarine Genera
16. [Monotreme | Animal Database | Fandom](https://animals.fandom.com/wiki/Monotreme)
17. [Source](https://encyklopedia.pwn.pl/haslo/stekowce;3979506.html)
18. National Library of Israel Names and Subjects Authority File
19. KBpedia
20. GF WordNet
21. Open Tree of Life reference taxonomy version 3.6
22. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)