| Archimedes wortheni Scytalocrinus robustus Edwardsville Fm. Crawfordsville, Indiana Size: About 2.7 cm tall bryozoan and about 1.7 cm. crinoid crown. The bryzoan has the delicate fronds still attached which make this piece stand out. The crinoid is just an added bonus. Price: $30 US ID number: f2770 | 
|