Reviews
This Specimen has been sold.
HERE ARE SOME OTHER SIMILAR FOSSILS FOR SALE
Fossil Crinoid (Gilbertsocrinus) and Gastropod (Platyceras) - Indiana
This is a natural association of a fossil crinoid (Gilbertsocrinus tuberosus) and a fossil gastropod of the species Platyceras equilateralis. It was collected from the Edwardsville Formation of Crawfordsville, Indiana. The quality of preparation on this fossil cluster is excellent, using skillful air abrasion techniques under a stereo microscope.
The entire specimen measures 2.1 x 1.85".
The entire specimen measures 2.1 x 1.85".
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
Gilbertsocrinus tuberosus (Crinoid) & Platyceras equilateralis (Gastropod)
AGE
LOCATION
Crawfordsville, Indiana
FORMATION
Edwardsville Formation
SIZE
2.1 x 1.85" entire specimen
CATEGORY
SUB CATEGORY
ITEM
#216142
We guarantee the authenticity of all of our specimens.
