Griffithides, A Rare Mississippian Trilobite

Name: Griffithides bufo

Class Trilobita, Trilobite Order Proetida, Superfamily Proetoidea, Family Proetidae

Geological Time: Lower Mississippian, Osagean Stage

Size: Trilobite: 17 mm; Brachiopod: 40 mm

Fossil Site: Edwardsville Formation, Crawfordsville, Indiana

GriffithidesThis is an enrolled specimen of Griffithides bufo, a rare member of the Trilobite Order Proetida, Family Proetidae. Coming from the Osagean Stage deposits of Crawfordsville, Indiana, this trilobite is a member of the last surviving order of trilobites, the Proetida. It is found in these same deposits made famous by the wonderful crinoids found there. There is also a well-preserved brachiopod on the same matrix, making for a most uncommon association plaque.

click trilobite pictures to enlarge

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