Phacopoidea

Phacopoidea is a superfamily of trilobites.

External links

• trilobites.info - Gallery of Phacopida
• http://www.trilobites.info/ordphacopida.htm - General information
• https://web.archive.org/web/20050314170245/http://jgalef2004.sphosting.com/trilobite/td2.html - More images