Two Crinoids (Macrocrinus & Taxocrinus) - Crawfordsville, Indiana

This is a pair of detailed crinoid (Macrocrinus mundulus & Taxocrinus colletti) fossils, each with a nice section of stem attached. It was collected from the Edwardsville Formation near Crawfordsville, Indiana and prepared with air abrasives under microscope.

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.

SOLD
DETAILS
SPECIES
Macrocrinus mundulus & Taxocrinus colletti
LOCATION
Crawfordsville, Indiana
FORMATION
Edwardsville Formation
SIZE
Larger crinoid 1.6", rock 2.8x2.3
CATEGORY
SUB CATEGORY
ITEM
#132447
GUARANTEE
We guarantee the authenticity of all of our
specimens. Read more about our
Authenticity Guarantee.