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13.6" Fossil Crinoid Plate (Eight Species) - Crawfordsville, Indiana
This is a beautiful, 13.6" plate of twelve detailed fossil crinoids (eight species) from Crawfordsville, Indiana. These fossils have been microscopically prepared using air abrasives, revealing their intricate details and three dimensional preservation.
Comes with an acrylic/metal display stand.
Identification:
1) - Unidentified crinoid
2&10) - Cyathocrinites multibrachiatus
3,7,9&11) - Macrocrinus mundulus
4) - Barycrinus sp.
5) - Onychocrinus sp.
6) - Pellecrinus intermedius
8) - Unidentified crinoid
12) - Barycrinus stellatus
Comes with an acrylic/metal display stand.
Identification:
1) - Unidentified crinoid
2&10) - Cyathocrinites multibrachiatus
3,7,9&11) - Macrocrinus mundulus
4) - Barycrinus sp.
5) - Onychocrinus sp.
6) - Pellecrinus intermedius
8) - Unidentified crinoid
12) - Barycrinus stellatus
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
Various Crinoids
LOCATION
Crawfordsville, Indiana
FORMATION
Edwardsville Formation
SIZE
13.6 x 10.05" rock
CATEGORY
SUB CATEGORY
ITEM
#198238
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