Eldredgeia
Eldredgeia is a genus of trilobites in the order Phacopida, suborder Phacopina, family Calmoniidae. This genus comes from the Devonian of South America and South Africa, usually found in nodules. The trilobite Eldredgeia venusta, from Bolivia, is the most common South American trilobite on today's fossil market, and even then it is not all that common. This genus has a spiny pygidium and usually the eye facets are well preserved.
Species
- Eldredgeia venustus from the Sicasica Formation, La Paz Department, Bolivia. Also known from the Upper Member of the Belén Formation, La Paz Department, and the Pimenteira Formation Givetian
- Eldredgeia cf. E. venustus from South Africa. Eifelian.
- Eldredgeia paituna from the Erere Sandstone, Para, Brazil. Eifelian.
- Eldredgeia eocryphaeus, from the Lower Member of the Belén Formation, Scaphiocoelia
File:Eldredgeia venusta thorax.jpg|Eldredgeia venustus
File:Eldredgeia venusta cephalon.jpg|Eldredgeia venustus, dorsal view of the head
File:Eldredgeia eocryphaea obliquefrontal 2.jpg|Eldredgeia eocryphaea
File:Eldredgeia eocryphaea negative.jpg|Eldredgeia eocryphaea, negative imprint