![Bactocrinus grandis](http://www.geoed.co.uk/cdn/shop/products/pictrilonew_e0bbf01a-7656-4222-bb51-0c41952cbdda_{width}x.png?v=1583837325)
A very fine complete calyx showing all the individual plates, 22 brachial facets and the position of the stem and anal tube. From Crawfordsville, Indiana, USA.
Size: 47 mm by 40 mm
Size: 47 mm by 40 mm