Crinoid Fossil Aorocrinus Ioloa + Dichocrinus Multiplex Iowa

Crinoid Fossil Aorocrinus Ioloa + Dichocrinus Multiplex Iowa

Attractive display of two species of crinoid.Crinoids are also commonly known as sea lillies. Crinoids are marine animals that make up the class Crinoidea of the echinoderms (phylum Echinodermata). Crinoidea comes from the Greek word krinon, "a lily", and eidos, "form". They live both in shallow water and in depths as great as 9,000 meters (30,000 ft).Sea lilies refer to the crinoids which, in their adult form, are attached to the sea bottom by a stalk. Feather stars or comatulids refer to the unstalked forms. Although it does have a flat base, the fossil comes with an acrylic click and twist display stand.for added stability.
Date:  Mississippian( Lower Carboniferous) Provenance:Gilmore City Formation, Gilmore City, Iowa, USA
Size: 11 wide x 10 cm tall  Depth 3 cm weight 444  gm
Condition: The fossils have some intricate detail particularly under magnification and good preservation.code 9470