# Helicoplacoidea

> class of fossil echinoderms

**Wikidata**: [Q105038020](https://www.wikidata.org/wiki/Q105038020)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Helicoplacoidea)  
**Source**: https://4ort.xyz/entity/helicoplacoidea


## References

1. Encyclopedia of Life