The Crinoid "Uintacrinus" is the MOST RARE Invertebrate fossil found in the Kansas Chalk Beds... and quite possibly one of the RAREST described species found in the Kansas Chalk. They are found in only ONE zone in the Kansas Chalk layers.
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Name: Unitacrinus socialisGeologic Age: CretaceousStratigraphic Detail: Niobrara FormationLocation: KansasDESCRIPTION: This is a beautiful slab of very rare free swimming crinoids from the Kansas Niobrara Chalk. There are three calyxes (heads) positioned in each corner of the slab, plus partial exploded heads in other parts of the piece. This piece has a light brown stain to bring out contrast and sealed with hardener to protect this delicate fossil. This specimen is mounted in a ready-to-hang wooden frame.. Approx. 11.75" x 17" in size. This is an EXTREMELY RARE FOSSIL!!!Kansas Crinoid 1 Price $725.00