Extra-rare!!!!!

Name of the echinoid : LEPIDOCIDARIS
Name of the crinoids :
PARISOCRINUS SP
DICHOCRINUS SP
DIZYGOCRINUS BITURBINATUS
DIZYGOCRINUS ORIGINARIUS

Age : Mississippian , Warsaw formation

Location : Adams co. , Illinois , USA

The association of these fossils is natural .The echinoid has a size of 5.8 cm onto a slab of 16 x 11.5 cm .Note the numerous crinoids and many spines of the echinoid are preserved.