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2.2" Fossil Crinoid (Agaricocrinus) With Starfish - Crawfordsville
This is a rare, Carboniferous-aged fossil starfish (Onychaster flexilis) that's wrapped around the center of the crown of an incredibly well preserved Agaricocrinus americanus crinoid, collected from Crawfordsville, Indiana. Both fossils are three dimensional, highly detailed, and have been prepared using air abrasives under microscope. They have been prepped in a way that they're exposed across both sides of the rock.
It comes with an acrylic display stand.
It comes with an acrylic display stand.
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.
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
Onychaster flexilis (Starfish) & Agaricocrinus americanus (Crinoid)
LOCATION
Crawfordsville, Indiana
FORMATION
Edwardsville Formation
SIZE
Crinoid: 2.2" wide, Rock: 3.8 x 3"
CATEGORY
SUB CATEGORY
ITEM
#231935
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