.8" Mississippian Echinoid (Archaeocidaris) Fossil - Iowa

This is a 1.4" wide fossil echinoid (sea urchin) plate containing a beautiful Archaeocidaris aliquantula specimen with spines exposed along both sides of the specimen. It was collected from the Gilmore City Formation in Gilmore City, Iowa. It is preserved 3D and has been prepared with air abrasives.


Sea urchins are a type of echinoderm that are still living relatively unchanged today. They live at the bottom of soft ocean floors and have long spines protruding from their central bodies. They move along the bottom of the ocean using many small feet while feeding on various plant and animal matter.
FOR SALE
$25 $19
DETAILS
SPECIES
Archaeocidaris aliquantula
LOCATION
Gilmore City, Iowa
FORMATION
Gilmore City Formation
SIZE
Echinoid: .8" wide, Rock: 1.4 x 1.2"
CATEGORY
SUB CATEGORY
ITEM
#327230
GUARANTEE
We guarantee the authenticity of all of our specimens.