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Two Fossil Crinoids (Macrocrinus) - Crawfordsville, Indiana
These are two beautifully detailed fossil crinoids (Macrocrinus mundulus) from the famous crinoid beds near Crawfordsville, Indiana. They have been expertly prepared with air abrasives under microscope to reveal the intricate, 3D preservation of the fossils.
It comes with an acrylic display stand.
Measurements:
Entire specimen - 4.6 x 3.7"
Crinoids - 4.05" & 1.95" (largest including stem)
It comes with an acrylic display stand.
Measurements:
Entire specimen - 4.6 x 3.7"
Crinoids - 4.05" & 1.95" (largest including stem)
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
Macrocrinus mundulus
LOCATION
Crawfordsville, Indiana
FORMATION
Edwardsville Formation
SIZE
Entire specimen: 4.6 x 3.7"
CATEGORY
SUB CATEGORY
ITEM
#310204
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