Description
Genus/species: 1. Halysiocrinus tunicatus 2. Macrocrinus mundulus
Age: Mississippian/Osagean (approximately 345 million years)
Formation: Edwardsville
Location: Crawfordsville, Montgomery County, Indiana, USA
Matrix Dimensions: 3.2″ long x 2.9″ wide x .81″ thick
Weight: .4 lbs
