|
Name:
Macrocrinus mundulus, Actinocrinites gibsoni
Age: Mississippian
Formation: Edwardsville Formation
Location: Crawfordsville, Indiana
Size: Plate is 2.9'' X 4.4''
This specimen is not for sale
Click here for similar specimens that are for sale
This is a stunning plate of crinoids from the Mississippian of Indiana. On the bottom of the slab is a Macrocrinus mundulus. This type of Camerate crinoid has an urn-shaped cup composed of many plates, biserial arms, and a long, multi-plated anal tube. The pinnulation of the arms is wonderfully displayed on this crinoid. The crinoid on the top of the plate is a very inflated example of Actinocrinites gibsoni. This type of Camerate crinoid has a large cup with stellate plates and multi-branching, biserial arms. This ''sea lily'' also exhibits the anal tube extending above the tips of the arms. The plate structure of these echinoderms is very impressive and the arms are beautifully showcased. Both crinoids still have the articulated stems tightly attached, the Actino much more than the Macro. The fossils have great color and contrast and are aesthetically positioned on the sculpted plate of siltstone. And best of all, they are totally natural to the plate - they have not been composited. This is a very attractive double crinoid specimen from the Edwardsville Formation.
|
|
