# Echinoidea

> class of marine invertebrates

**Wikidata**: [Q83483](https://www.wikidata.org/wiki/Q83483)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Sea_urchin)  
**Source**: https://4ort.xyz/entity/echinoidea


## References

1. Integrated Taxonomic Information System. 2004
2. Integrated Authority File
3. Freebase Data Dumps. 2013
4. Taxonomy database of the U.S. National Center for Biotechnology Information
5. Encyclopedia of Life
6. Fossilworks
7. Global Biodiversity Information Facility
8. World Register of Marine Species
9. [Source](https://www.science.org/doi/10.1126/sciadv.adx7753)
10. Nederlands Soortenregister
11. Dyntaxa
12. Plazi
13. YSO-Wikidata mapping project
14. New Zealand Organisms Register
15. UMLS 2023
16. Barcode of Life Data Systems
17. [Source](http://enciclovida.mx/especies/1000008)
18. Interim Register of Marine and Nonmarine Genera
19. [Source](https://encyklopedia.pwn.pl/haslo/jezowce;3917894.html)
20. National Library of Israel
21. KBpedia
22. GF WordNet
23. Open Tree of Life reference taxonomy version 3.6
24. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)