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3D Parascytalocrinus Crinoid Fossil - Crawfordsville
This is a well preserved, 2.2" long Parascytalocrinus hamiltonensis crinoid fossil from the famous Witherspoon Quarry near Crawfordsville, Indiana. It has been prepared under microscope using air abrasives.
Crinoids from the Ramp Creek Limestone were likely buried in sediment from nearby deltas during storms. The resulting siltstone deposits are soft enough that fossils can be extracted in exquisite, three-dimensional relief.
Crinoids, sometimes commonly referred to as sea lilies, are animals, not plants. They are echinoderms related to starfish, sea urchins, and brittle stars. Many crinoid traits are like other members of their phylum. Such traits include tube feet, radial symmetry, a water vascular system, and appendages in multiples of five (pentameral). They first appeared in the Ordovician (488 million years ago) and some species are still alive today.
Crinoids, sometimes commonly referred to as sea lilies, are animals, not plants. They are echinoderms related to starfish, sea urchins, and brittle stars. Many crinoid traits are like other members of their phylum. Such traits include tube feet, radial symmetry, a water vascular system, and appendages in multiples of five (pentameral). They first appeared in the Ordovician (488 million years ago) and some species are still alive today.
SPECIES
Parascytalocrinus hamiltonensis
LOCATION
Crawfordsville, Indiana
FORMATION
Edwardsville Formation
SIZE
2.2" on 2.6 x 2.2" rock
CATEGORY
SUB CATEGORY
ITEM
#94779
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