Hesslerides bufo

Formation: Edwardsville Formation, Crawfordsville, Indiana.

Age: Carboniferous.

Size:3.2 cms.

Comments:

One of the last species of trilobites that populated the Earth, this formation, is also very famous for the crinoids encountered therein.Hesslerides bufo is a specie that is very difficult to find complete, often only found parts of the trilobite.