Kansas Crinoids

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.

Last Modified 09/11/2008

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Name:       Unitacrinus socialis
Geologic Age:    Cretaceous
Stratigraphic Detail:  Niobrara Formation
Location:   Kansas
DESCRIPTION:  This is a beautiful slab of very rare free swimming crinoids from the Kansas Niobrara Chalk. There are four calyxes (heads) positioned in each corner of the slab, plus partial exploded heads in other parts of the piece. There are two small heads on the left of the slab and two larger heads on the right corners, which are slightly scattered. Small oyster shells are adhered to the crinoids in the center portion of the slab. This piece has a light brown stain to bring out contrast and sealed with hardener to protect this delicate fossil.  This is an EXTREMELY RARE FOSSIL!!!

Kansas Crinoid 1   Price  $1500.00